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How to Fix Git Push Rejected (Non-Fast-Forward) Error - Fix Nginx 502 Bad Gateway in Docker Containers-Recover Lost Changes After Git Detached HEAD

Updated 2026-07-28 13:44:40office-tools
How to Fix Git Push Rejected (Non-Fast-Forward) Error - Fix Nginx 502 Bad Gateway in Docker Containers-Recover Lost Changes After Git Detached HEAD
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.