[Bug] Slash command autocomplete matches partial commands incorrectly

Bug Description
I have a slash command /module. When I try to use /model is instead run the command /module!

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.0.31
• Feedback ID: 7f87c265-37a1-4b1c-ae2b-663d4c40688a

Errors

[{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/claude:526:3850)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-03T23:06:51.379Z"},{"error":"Error: Request was aborted.\n    at _createMessage (/$bunfs/root/claude:385:4506)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-03T23:06:59.023Z"}]