Description:
Add comments in two different cells.  Mark and copy them.  Go to another cell an paste the comments selectively using options "comments" and "adding".  After pasting that way the comments doesn't appear.  By copy/paste the comments one by one it works.  Same behaviour in versions 7.6.1.2 and 7.6.2.1.  Version 7.5.7.1 worked fine.

Steps to Reproduce:
1.Open a new empty calc document.
2.Go to an arbitrary cell, for example B2.
3.Create there a new comment, for example "Test 1".
4.Go to an other cell, for example B3 and create here a new comment "Test 2".
5.Mark both cells B2 and B3 and copy them (Ctrl-c).
6.Go to an other cell, for example D2 and insert the comments selectively by adding them: german menu Bearbeiten → Inhalte einfügen.  Choose there the options comments and add.  Click on "OK".
7.Do the same with both comments but one by one and it works as expected.

Actual Results:
to 6.: Result is that the cells D2 and D3 are marked but the comments are missing.  If you do the paste step again, the option "comments" isn't marked anymore.
to 7.: The comments are correctly pasted, but it's too much effort for many cells.

Expected Results:
The comments of many cells should be pasted selectively and the other cell contents and properties should be untouched.  This is only the case, if you copy/paste the comments by only one cell at a time.


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 7.6.2.1 (X86_64) / LibreOffice Community
Build ID: 56f7684011345957bbf33a7ee678afaf4d2ba333
CPU threads: 12; OS: Linux 5.6; UI render: default; VCL: gtk3
Locale: de-DE (de_DE.UTF-8); UI: de-DE
Calc: threaded