[Bug] File tagging with @ causes extended UI freeze

Bug Description
Claude Code freezes for a really long time when I try to tag @ a file in my system. Sometimes it stays hung for over a minute. I cannot do anything in that instance.

Environment Info

• Platform: darwin
• Terminal: WarpTerminal
• Version: 2.1.71
• Feedback ID: 9d5683aa-0696-42b4-8bbc-4b72e94ffb9f

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/jay/.local/share/claude/versions/2.1.71 (expected in multi-process scenarios)\n    at Xxq (/$bunfs/root/src/entrypoints/cli.js:2603:2066)\n    at zU8 (/$bunfs/root/src/entrypoints/cli.js:2603:1210)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-07T15:28:36.841Z"}]