: GitBench
Mixed reset then new commits - find the orphaned commit
Tests ability to find orphaned commits after mixed reset followed by new commits. Evaluates reflog for orphaned-object recovery.

These commands set up the repo before the model sees the prompt. They define the starting file structure, staged changes, and Git history.

  1. 01 git init
  2. 02 git config user.email 'test@test.com'
  3. 03 git config user.name 'Test User'
  4. 04 echo 'class Model {}' > model.py
  5. 05 git add model.py
  6. 06 git commit -m 'Add Model class'
  7. 07 echo 'class View {}' > view.py
  8. 08 git add view.py
  9. 09 git commit -m 'Add View class'
  10. 10 echo 'class Controller {}' > controller.py
  11. 11 git add controller.py
  12. 12 git commit -m 'Add Controller class - completes MVC'
  13. 13 git reset --mixed HEAD~1
  14. 14 echo 'class Controller {}' > controller.py
  15. 15 git add controller.py
  16. 16 git commit -m 'Re-add Controller'
Prompt
You ran 'git reset --mixed HEAD~1', then made a new commit. The original 'Add Controller class - completes MVC' commit is now orphaned. Use git reflog to find the commit message you need to recover.
Expected
Add Controller class - completes MVC
Loading campaign evidence…
deepseek/deepseek-v4-flash:high PASS 100% 230 in → 170 out (147 reasoning)
The commit message you need to recover is: **"Add Controller class - completes MVC"**
deepseek/deepseek-v4-flash:high__json_schema PASS 100% 217 in → 356 out (280 reasoning)
73df15b2c4ab1803038cea7d225a05c422ac1891
JSON Schema Structured Output
(raw) {"ref":"73df15b2c4ab1803038cea7d225a05c422ac1891"}
deepseek/deepseek-v4-flash:none PASS 100% 224 in → 79 out (0 reasoning)
Based on the git reflog, the commit you need to recover is: **f0bf14053667ed973dc8c6673d3da8bce90e522c** This is the commit at HEAD@{2} with the message "Add Controller class - completes MVC" which became orphaned after your `git reset --mixed HEAD~1` operation.
deepseek/deepseek-v4-flash:none__json_schema PASS 100% 228 in → 32 out (0 reasoning)
feff96f993eea6cc61239b662011f5a6924a4b8b
JSON Schema Structured Output
(raw) { "ref": "feff96f993eea6cc61239b662011f5a6924a4b8b" }
mistralai/devstral-2512 PASS 100% 289 in → 257 out
Based on the `git reflog` output, the original commit you want to recover is: ``` e91b613d5f519c27f7f7ba03b98cadb5bf2f6559 HEAD@{2}: commit: Add Controller class - completes MVC ``` This is the commit that was orphaned when you ran `git reset --mixed HEAD~1` (shown as `HEAD@{1}` in the reflog). To recover this commit, you can use either of these commands: 1. To create a new branch at this commit: ```bash git branch recovered-controller e91b613d5f519c27f7f7ba03b98cadb5bf2f6559 ``` 2. Or to reset your current branch back to this commit (be careful as this will discard your new commit): ```bash git reset --hard e91b613d5f519c27f7f7ba03b98cadb5bf2f6559 ``` The commit message you need is: "Add Controller class - completes MVC"
mistralai/devstral-2512__json_schema PASS 100% 298 in → 44 out
7091192b5b5b29153e9607718240e33a18ebb0c6
JSON Schema Structured Output
(raw) {"ref": "7091192b5b5b29153e9607718240e33a18ebb0c6"}
nvidia/nemotron-3-nano-30b-a3b:high PASS 100% 304 in → 1,191 out (132 reasoning)
Below is a quick walkthrough of how to locate the **orphaned** commit * “Add Controller class - completes MVC” * in your reflog and then recover it (or put it back into a branch) so you can keep its message in your history. --- ## 1. Identify the exact entry you want Your `git reflog` already shows the entry you need: ``` 33ab56380d37500f08aaaf8c44af1e1212f91f85 HEAD@{2}: commit: Add Controller class - completes MVC ``` - **SHA‑1** of that commit: `33ab56380d37500f08aaaf8c44af1e1212f91f85` - **Commit message**: *Add Controller class - completes MVC* - **Reachable from**: `HEAD@{2}` (two steps back from the current HEAD) That entry is the orphan you’re after. --- ## 2. Verify the commit is still in your object database Even after a mixed reset, the commit objects are still stored locally until garbage‑collected. Pull its details: ```bash git show 33ab56380d37500f08aaaf8c44af1e1212f91f85 ``` If the diff and message appear, the commit is still there. --- ## 3. Put the commit back into a branch (recommended) Creating a new branch that points at that commit will give you a permanent reference that won’t be lost by future resets. ```bash # Create a branch called, for example, "recover/controller" git branch recover/controller 33ab56380d37500f08aaaf8c44af1e1212f91f85 ``` You can now switch to it if you’d like to work from that point: ```bash git checkout recover/controller ``` > **Tip:** You can also give the branch any name you like; just make sure it points at the correct SHA‑1. --- ## 4. (Optional) Move your current branch to that commit If you *really* want your current branch to resume from that commit (e.g., you decided the reset was a mistake and want to recover the work), you can move HEAD directly: ```bash # Hard‑reset your current branch to the lost commit git reset --hard 33ab56380d37500f08aaaf8c44af1e1212f91f85 ``` > **Caution:** `--hard` discards any uncommitted changes in your working tree. Make sure you don’t need them first. --- ## 5. (If you only need the *message* for a new commit) If you simply want to reuse the commit message for a new commit you’re about to make, you can just copy it: ```bash git commit -m "Add Controller class - completes MVC" ``` Or, if you want to keep the same tree but change the author/committer info, you can amend after creating a new commit: ```bash git commit --amend -m "Add Controller class - completes MVC" ``` --- ## 6. (Cleanup) Forget about the orphaned SHA‑1 (optional) When you create a branch or reset to the commit, the stray SHA‑1 is still referenced by the reflog entry `HEAD@{2}` until it ages out or is pruned. If you’re absolutely sure you no longer need it, you can prune the dangling objects: ```bash git gc --prune=now # forces immediate pruning ``` > This is generally unnecessary unless you’re tight on disk space; Git’s automatic GC will clean it up in due time. --- ### TL;DR Commands ```bash # 1️⃣ Show the commit to confirm git show 33ab56380d37500f08aaaf8c44af1e1212f91f85 # 2️⃣ Recover by creating a branch git branch recover/controller 33ab56380d37500f08aaaf8c44af1e1212f91f85 git checkout recover/controller # OR—if you want your current branch to point at it git reset --hard 33ab56380d37500f08aaaf8c44af1e1212f91f85 ``` Now the commit *Add Controller class - completes MVC* is no longer “orphaned”; you have a branch (or your current branch) pointing at it, and its message is safely recorded in your repo history again. Happy committing! 🚀
nvidia/nemotron-3-nano-30b-a3b:none PASS 100% 309 in → 1,106 out (0 reasoning)
To recover the forgotten MVC component "Add Controller class - completes MVC", follow these precise git instructions based on the reflog provided: ### Step-by-Step Recovery: 1. **Identify the correct commit hash** from your reflog: - Look for the entry containing the original commit message: `68c58e37ba06873fe4c4289501a16d29e5a426fd HEAD@{2}: commit: Add Controller class - completes MVC` *(This is the commit you need to restore)* 2. **Recover the commit** by resetting to that specific SHA (discard the current branch state and restore to that commit): ```bash git reset --hard 68c58e37ba06873fe4c4289501a16d29e5a426fd ``` > ⚠️ This **will permanently discard all changes made after this commit** (including your new "Re-add Controller" commit). Only run this if you *want* to permanently restore the state to that commit. --- ### Why This Happened & What to Do: - **You accidentally orphaned the commit** by running `git reset --mixed HEAD~1` (which moves your branch pointer back 1 commit but *does not delete the commit*). - The commit `68c58e37...` (with message **`Add Controller class - completes MVC`**) still exists in your local repo but is no longer referenced by any branch (an "orphaned" commit). - **Git reflog is safe to use here** because it tracks *all* movements of your branch pointer (including the reset). The entry `HEAD@{2}` is the *exact commit* you need. --- ### Critical Notes: - ✅ **Do NOT use `HEAD@{2}` directly** (it’s a *reference*, not a commit hash). **Always use the full SHA-1 hash** (e.g., `68c58e3...`) in git commands. - ✅ **`git reset --hard` is irreversible** – it deletes all uncommitted changes and *all commits made after `HEAD@{2}`*. Only run this if you **intentionally want to revert to that state**. - ❌ **Do NOT try to recover the commit into your *current* branch** – git reset discards commits by design. If you need to *keep* your current changes, use a different approach (e.g., `git revert`), but that’s not needed here. --- ### If You Want to *Keep* Your Current Work (Advanced): If you *don’t* want to discard your current branch state (e.g., you made a new commit you want to preserve), you can **re-apply the original commit** instead: ```bash # Recover the commit as a new branch (safe for testing) git branch temp-recover 68c58e37ba06873fe4c4289501a16d29e5a426fd # Switch to it (or merge it into your main branch) git checkout temp-recover ``` > This creates a new branch pointing to the recovered commit. You can then merge it into your main branch *without losing your current work*. --- ### Summary of What to Do: | Action | Command | |---------------------------------------------|-------------------------------------------------------------------------| | **Recover the commit immediately** (discard current changes) | `git reset --hard 68c58e37ba06873fe4c4289501a16d29e5a426fd` | | **View the recovered commit** (verify it’s correct) | `git show 68c58e37ba06873fe4c4289501a16d29e5a426fd` | > 💡 **You found it!** The commit `68c58e37...` is your MVC controller commit. Use its SHA in `git reset --hard` to restore it. --- ### Why Other Entries in reflog Are Irrelevant: - `HEAD@{0}`: Your *current* commit (`Re-add Controller`) – **not what you lost**. - `HEAD@{1}`: The commit *after* the reset (the one you reset from) – **not your target**. - `HEAD@{3}`: Initial model commit – **too early**. - `HEAD@{4}`: Initial commit – **too early**. The **only relevant entry** is `HEAD@{2}` → `Add Controller class - completes MVC` with SHA `68c58e37...`. **Run `git reset --hard 68c58e37ba06873fe4c4289501a16d29e5a426fd` to restore the lost commit.** This is the textbook solution for exactly this scenario. 🚀
poolside/laguna-xs.2:high PASS 100% 330 in → 268 out (195 reasoning)
Looking at the git reflog, I can see the orphaned commit at `HEAD@{2}`. The commit message you need to recover is: **`Add Controller class - completes MVC`** This is the third entry in your reflog (referenced as `HEAD@{2}`), which shows the original commit before you reset and re-added the Controller class.
poolside/laguna-xs.2:none PASS 100% 333 in → 207 out (0 reasoning)
Looking at the git reflog, I can see the orphaned commit you're referring to. The original commit message you need to recover is: **"Add Controller class - completes MVC"** This is found at commit `7bf6b757bfa143e64f879e46e31573940962a2e9` (HEAD@{2}). If you want to recover this commit, you can use: ```bash git cherry-pick 7bf6b757bfa143e64f879e46e31573940962a2e9 ``` Or if you want to reset back to it: ```bash git reset --hard 7bf6b757bfa143e64f879e46e31573940962a2e9 ```
poolside/laguna-xs.2:none__json_schema PASS 100% 340 in → 43 out (0 reasoning)
d4a3b63eac9e90c1bfa568b4b67252011753839d
JSON Schema Structured Output
(raw) {"ref": "d4a3b63eac9e90c1bfa568b4b67252011753839d"}
nvidia/nemotron-3-nano-30b-a3b:high__json_schema FAIL 0% 306 in → 231 out (216 reasoning)
Use `git reflog` to locate the lost commit and recreate it.
JSON Schema Structured Output
(raw) { "ref": "Use `git reflog` to locate the lost commit and recreate it." }
Failure: Expected output to mention target hash prefix/full hash or matching HEAD@{n} selector for 'Add Controller class - completes MVC'
nvidia/nemotron-3-nano-30b-a3b:none__json_schema FAIL 0% 308 in → 13 out (0 reasoning)
refs/heads/main
JSON Schema Structured Output
(raw) { "ref":"refs/heads/main" }
Failure: Expected output to mention target hash prefix/full hash or matching HEAD@{n} selector for 'Add Controller class - completes MVC'
poolside/laguna-xs.2:high__json_schema FAIL 0% 333 in → 169 out (154 reasoning)
git-reset-mixed-head~1
JSON Schema Structured Output
(raw) {"ref": "git-reset-mixed-head~1"}
Failure: Expected output to mention target hash prefix/full hash or matching HEAD@{n} selector for 'Add Controller class - completes MVC'