The cursor is on the wrong height after deleting all characters in a line.
The cursor 'forgets' its font size as far as its y position is concerned. Ubuntu 19.10
Write something in the title with 2 lines of text. Delete the entire second line, now the cursor is on the wrong height.
This was created after a PR for this issue was made. https://github.com/musescore/MuseScore/pull/5884