1 second delay when doing Ctrl+A

[ELginas]

System: Windows 10 (OS Build 19043.1288)
Reproducible on any text input field in any example (Debug/Release)

If during that 1 second delay you update UI (by checking/unchecking checkbox or selecting different option in option box), Ctrl+A takes effect immediately.

Best example I found is image example.

[cmyr]

To me this indicates that we are not correctly requesting paint, and instead only updating when we next need to redraw the cursor.

[maan2003]

I think it was a pending issue after #1931. But didn't open a issue