[Bug-readline] Executing any bound shell command redraws the prompt which seems unnecessary

[Šimon Let]

Version: GNU bash, version 5.0.9(1)-release (x86_64-pc-linux-gnu)

Description (steps to reproduce):

Create a dummy shell function: `funcX(){ local x=1; }`

Bind shell command/function: `bind -x '"\C-x": funcX'`

Hold down the "C-x" key.

The prompt will flicker. 

I suspect that the prompt is being redrawn with each execution of the shell command.

Is there a reason for this? It seems unnecessary. Readline doesn't seem to redraw the prompt when builtin commands are executed (e.g., history-search-backward).

Regards,

Simon Let