SUMMARY
In my projects tree, I am trying to copy and paste a file in the same directory. It complains that it would overwrite the file with itself and says, "Please enter a new file name:" with the file name highlighted.

In the notifications section on my display, it says it is Copying with pause, stop, and play.

In the dialog, however, it will not accept any keyboard or mouse input, so I cannot suggest a new name. The only way I can proceed is to hit the stop button in the notification, which effectively cancels the operation.

STEPS TO REPRODUCE
1.  In the Projects, right-click a file and select "Copy"
2.  Right-click on the same folder and select "Paste"
3. Attempt to suggest a new name for the file.

OBSERVED RESULT
Input into the dialog is prevented until the notification has gone away, however, the only way to finish the notification is to select stop, canceling the entire operation.

EXPECTED RESULT
I expect to be able to type in a new filename

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: OpenSUSE 15.3
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION