So with issues like #4052, why does this happen? Why is RA blocking Enter keys from following through to the editor?
I'm experiencing the same thing today with this week's build and have encountered it in the past as well (for example #3782)
and it is incredibly frustrating
Rust analyzer tries to for example insert
/// after pressing enter inside a doc comment.
You should be able to disable the keybinding in
Preferences: Open Keyboard Shortcuts. The binding is called
rust-analyzer.onEnter. You need to right click to remove it.