Description:
I added a new tab to a workbook, and renamed it. After that, no keyboard input was accepted, including trying to do a search, and trying to use keyboard shortcuts to save and exit.

I was able to reproduce the bug several different ways, including renaming an existing tab, and copying an existing tab and renaming it as part of the copy.

Changing focus did not resolve the issue. Closing Libre Office and restarting it did resolve the issue until the next time I needed to rename a tab. I did not have to reboot my linux laptop.

The keyboard fail applied to all Libre Office documents I had open at the time, which included both a text (writer) document and several workbooks.

Restarting in safe mode resolved the issue; as soon as I restarted in normal mode, the problem was back.

Steps to Reproduce:
1. Open existing workbook, or create a new workbook.
2. Add a new worksheet, or select an existing worksheet, or make a copy of a worksheet.
3. Rename the worksheet.

Actual Results:
No more keyboard input is accepted.

Expected Results:
Keyboard input should work as usual.


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
[Information automatically included from LibreOffice]
Locale: en-US
Module: SpreadsheetDocument
[Information guessed from browser]
OS: Linux (All)
OS is 64bit: yes

Version: 6.1.5.2
Build ID: 1:6.1.5-3+deb10u3
CPU threads: 4; OS: Linux 4.19; UI render: default; VCL: x11; 
Locale: en-CA (en_CA.UTF-8); Calc: group threaded

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.3.6
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 18.3.6
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 18.3.6
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions: