Command selector suggestions don't disappear after closing the selector bracket

The bug

When writing a selector with brackets, for example @a[gamemode=survival and then close the bracket, it will still show the completion suggestions and allow you to complete them using Tab ↹, creating an invalid commant.

How to reproduce

1. Write

   /teleport @s[]

2. The suggestions don't disappear
3. Press Tab ↹ and then Space
4. Enjoy