How to reproduce:

1. Create new page
2. Switch to rich text editor
3. Create table
4. Create a list within one cell
5. Mark that list and copy it to the clipboard
6. Position cursor in another empty cell
   • Note: There should be a leading "space" in that cell, this seems to be default for empty cells...
7. Paste list into cell
   • Note: There should be an empty row right before the pasted list
8. Switch to preview => table will be garbled

This issue might be reported in one of the many other rich text related issues but i did not manage to find it, because those are very hard to survey.