Description:
When one adds direct formatting to some text in a table in LibreOffice Writer and then inserts or deletes a column or a row in that table, the table losts all its direct formatting.

Steps to Reproduce:
In a new empty LibreOffice Writer document:
1. Add a table (menu "Table" -> "Insert Table...", then click "Insert").
2. Write "hello" in the first cell of that new table.
3. Select the text "hello" and make it bold form the button in the toolbar.
4. Right-click the table and then select "Insert" -> "Columns Left".

Actual Results:  
The text "hello" has lost its formatting (the text is not bold anymore).

Expected Results:
The text "hello" should have retained its formatting, i.e. it should still be bold.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.0.1.1
Build ID: 6.0.1-1
CPU threads: 4; OS: Linux 4.14; UI render: default; VCL: gtk3; 
Locale: fr-CA (fr_CA.UTF-8); Calc: group

Package "libreoffice-fresh" 6.0.1-1 on Arch Linux.


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0