also with the paragraph mark, not leaving an empty
paragraph at the original place of the moved text.

Note: as desktop version of MSO does, but its
online version leaves empty paragraphs interestingly.

Change-Id: I03dda8997df3efbc82e936bd31a3813323e6b5ab
Reviewed-on: https://gerrit.libreoffice.org/71382Reviewed-by: László Németh <nemeth@numbertext.org>
Tested-by: László Németh <nemeth@numbertext.org>