Cursor editor shows incorrect Git change indicators in editor gutter, but VSCode and git diff show correct changes

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Summary

Cursor editor displays incorrect Git change indicators in the gutter for a file with a case-only rename on MacOS, while VSCode and git diff show the correct status. The issue persists despite reloading the window or refreshing Source Control.

Root Cause

The root cause is Git’s case-insensitive handling on MacOS, which was fixed in Git but not reflected in Cursor’s Git status integration. The file’s case-only rename caused Cursor to misinterpret the Git status, leading to stale or incorrect change indicators.

Why This Happens in Real Systems

  • Case-insensitive filesystems (like MacOS) treat files with different cases as the same, causing Git to handle them uniquely.
  • Cursor’s Git integration relies on Git’s output but fails to account for case-only renames on case-insensitive systems.
  • Caching mechanisms in Cursor may retain outdated Git status information, even after Git itself is updated.

Real-World Impact

  • Developer confusion: Inconsistent change indicators lead to mistrust in the editor’s Git integration.
  • Workflow disruption: Developers may waste time verifying changes manually or switching tools.
  • File-specific issue: Only affects files with case-only renames, making it harder to reproduce and debug.

Example or Code (if necessary and relevant)

# Example Git command showing correct status
git status
# Output: Shows the file as renamed (correctly)

# Cursor's incorrect gutter indicators persist despite this

How Senior Engineers Fix It

  • Invalidate Cursor’s Git cache: Force Cursor to re-fetch Git status by clearing internal caches.
  • Update Cursor’s Git integration: Ensure it handles case-insensitive filesystem edge cases like case-only renames.
  • Monitor Git events: Implement real-time Git event listeners to update Cursor’s status dynamically.

Why Juniors Miss It

  • Lack of filesystem knowledge: Juniors may not understand how case-insensitive filesystems affect Git.
  • Overlooking edge cases: Focus on common scenarios without testing case-only renames.
  • Assuming tool correctness: Trusting Cursor’s indicators without verifying against git diff or VSCode.

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