[Bug] Control+C does not interrupt vim mode editor

Bug Description

Control+C does not interrupt while in /vim mode, claude keeps doing things. It's not intuitive that vim mode is the reason for that. (Same as #38328, which was closed)

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.119
• Feedback ID: 9f7a3c53-1786-4eb9-8e68-b6f1ba362ed5

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/david/.local/share/claude/versions/2.1.119 (expected in multi-process scenarios)\n    at mH6 (/$bunfs/root/src/entrypoints/cli.js:2736:2177)\n    at E$8 (/$bunfs/root/src/entrypoints/cli.js:2736:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T06:26:27.962Z"}]