Description:
Calc 6.2.2.2 on KUbuntu Linux. After pasting text in a cell that already contains text calc stops accepting keyboard input for several seconds. This is very reproducible (see steps below).

I also have seen a similar behavior in Writer but it seems to be harder to reproduce. It sometimes stops accepting input when a certain document is opened or after pasting a certain piece of document. Not reproducible with all documents (though a document that is affected seems to be always affected).

I apologize if this has already been reported. I couldn't find a similar bug.

Steps to Reproduce:
1. open Calc under Ubuntu linux (others?)
2. Type text in cell B3 = FOO
3. Type text in cell B4 = BAR
4. Hit CTRL+C to copy text from cell B4
5. Move to cell B3
6. Hit CTRL+V to paste the text.
7. Choose "Yes" in the dialog that warns about pasting data in a cell that already contains data
8. Now try to input text anywhere: it doesn't work for 20-30 seconds.

Actual Results:
Calc stops accepting keyboard input.

Expected Results:
Calc accepts keyboard input as usual.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.2.2.2
Build ID: 1:6.2.2-0ubuntu2
CPU threads: 8; OS: Linux 5.0; UI render: default; VCL: kde5; 
Locale: en-GB (en_US.UTF-8); UI-Language: en-US
Calc: threaded