[Bug] Config changes not persisted when exiting editor with Esc key

Bug Description
Saving config isn't working. I'm trying to change the mode to plan-mode using the /config command, then pressing "esc" to save, but it just exits without saving. And I don't see any key for saving the changes

Environment Info

• Platform: darwin
• Terminal: WarpTerminal
• Version: 2.0.76
• Feedback ID: 82d54e9b-e081-4ca0-939e-f02364d0171c

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/my-user-name/.local/share/claude/versions/2.0.76 (expected in multi-process scenarios)\n    at XZR (/$bunfs/root/claude:2430:2165)\n    at fUA (/$bunfs/root/claude:2430:1885)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-01-03T10:03:36.893Z"}]