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fix: resolve branch checkout failure when PR is from fork with different naming#1218

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konard wants to merge 5 commits intomainfrom
issue-1217-e374ac6d6828
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fix: resolve branch checkout failure when PR is from fork with different naming#1218
konard wants to merge 5 commits intomainfrom
issue-1217-e374ac6d6828

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@konard konard commented Feb 5, 2026

🤖 AI-Powered Solution Draft

This pull request fixes issue #1217 - a bug where the solve command fails to checkout a PR branch when the PR comes from another user's fork with a different naming convention.

📋 Issue Reference

Fixes #1217

🔍 Root Cause Analysis

The bug occurred in setupPrForkRemote() function where the code incorrectly applied the current user's fork naming preference (--prefix-fork-name-with-owner-name) to another user's fork.

Example scenario:

  • Current user's fork: konard/objectionary-eo2js (prefixed naming)
  • PR author's fork: skulidropek/eo2js (standard naming)
  • Bug: Code constructed skulidropek/objectionary-eo2js which doesn't exist

📦 Changes

1. src/solve.repository.lib.mjs - setupPrForkRemote()

  • Query GitHub API to discover the actual fork name via repos/{owner}/{repo}/forks
  • Fall back to trying common naming patterns (standard and prefixed)
  • Provide clear error messages when fork cannot be found

2. src/solve.repository.lib.mjs - checkoutPrBranch()

  • Added PR refs fallback using GitHub's special refs/pull/{number}/head
  • This works regardless of fork naming and doesn't require fork access

3. src/solve.branch.lib.mjs

  • Pass prNumber to checkoutPrBranch() to enable PR refs fallback

4. Case Study Documentation

  • Created comprehensive case study at docs/case-studies/issue-1217/
  • Includes timeline, root cause analysis, failure logs, and solution proposals

🧪 Test Plan

  • Test with standard fork name (user/repo)
  • Test with prefixed fork name (user/owner-repo)
  • Test when PR author's fork has different naming than current user's fork
  • Test PR refs fallback when fork is inaccessible
  • Verify existing functionality is not affected

📚 Case Study

Full case study documentation is available at:

📎 Related Resources


🤖 Generated with Claude Code

Adding CLAUDE.md with task information for AI processing.
This file will be removed when the task is complete.

Issue: #1217
@konard konard self-assigned this Feb 5, 2026
…ent naming

The solve command was failing to checkout PR branches when:
1. The PR came from another user's fork (e.g., skulidropek/eo2js)
2. The current user had a fork with a different naming convention
   (e.g., konard/objectionary-eo2js)
3. The --fork flag was used in continue mode

Root cause: The code incorrectly applied the current user's
--prefix-fork-name-with-owner-name preference to another user's
fork name, constructing URLs like skulidropek/objectionary-eo2js
when the actual fork was skulidropek/eo2js.

Changes:
- Query GitHub API to discover the actual fork name instead of guessing
- Try common naming patterns as fallback (standard and prefixed)
- Add PR refs fallback (refs/pull/{number}/head) when fork checkout fails
- Include comprehensive case study documentation

Fixes #1217

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
@konard konard changed the title [WIP] BRANCH CHECKOUT FAILED: fatal: 'origin/issues/117' is not a commit and a branch 'issues/117' cannot be created from it fix: resolve branch checkout failure when PR is from fork with different naming Feb 5, 2026
@konard konard marked this pull request as ready for review February 5, 2026 11:28
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konard commented Feb 5, 2026

🤖 Solution Draft Log

This log file contains the complete execution trace of the AI solution draft process.

💰 Cost estimation:

  • Public pricing estimate: $3.921596 USD
  • Calculated by Anthropic: $2.613848 USD
  • Difference: $-1.307748 (-33.35%)
    📎 Log file uploaded as Gist (763KB)
    🔗 View complete solution draft log

Now working session is ended, feel free to review and add any feedback on the solution draft.

@konard konard marked this pull request as draft February 5, 2026 16:48
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konard commented Feb 5, 2026

🤖 AI Work Session Started

Starting automated work session at 2026-02-05T16:48:36.880Z

The PR has been converted to draft mode while work is in progress.

This comment marks the beginning of an AI work session. Please wait for the session to finish, and provide your feedback.

konard and others added 2 commits February 5, 2026 17:50
Add changeset for the bug fix that resolves branch checkout failure
when PR is from a fork with different naming convention.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
The hive.mjs -h test failure appears to be a flaky test unrelated
to the changes in this PR. This empty commit triggers a CI re-run.

The test passes consistently locally and the PR does not modify
hive.mjs at all.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
@konard konard marked this pull request as ready for review February 5, 2026 17:01
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konard commented Feb 5, 2026

✅ PR Ready for Review

Summary of Work Completed

This PR is now ready for review with all CI checks passing.

Changes Made

  1. Added changeset () - Patch release for the bug fix
  2. Previous work - Code fixes in src/solve.repository.lib.mjs and src/solve.branch.lib.mjs
  3. Documentation - Comprehensive case study in docs/case-studies/issue-1217/

CI Status

✅ All checks passing:

  • ✅ Check for Changesets
  • ✅ Lint checks
  • ✅ Test compilation
  • ✅ Test suites
  • ✅ File line limits
  • ✅ Documentation validation
  • ✅ Helm chart validation
  • ✅ Memory checks

Notes

  • Encountered a flaky test (hive.mjs -h) during CI runs, which passed on retry
  • The test failure was unrelated to the changes in this PR (hive.mjs was not modified)
  • Working tree is clean with no uncommitted changes

PR Link

#1218


🤖 This PR fixes issue #1217 - branch checkout failure when PR is from a fork with different naming convention.

@konard
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konard commented Feb 5, 2026

🤖 Solution Draft Log

This log file contains the complete execution trace of the AI solution draft process.

💰 Cost estimation:

  • Public pricing estimate: $1.843932 USD
  • Calculated by Anthropic: $2.010828 USD
  • Difference: $0.166896 (+9.05%)
    📎 Log file uploaded as Gist (581KB)
    🔗 View complete solution draft log

Now working session is ended, feel free to review and add any feedback on the solution draft.

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BRANCH CHECKOUT FAILED: fatal: 'origin/issues/117' is not a commit and a branch 'issues/117' cannot be created from it

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