in Show changes mode, too. Delayed update of the paragraph
layout at file saving etc. resulted invisible style changes.

All removed paragraphs get the style of the first (partially
deleted) paragraph to avoid text insertion with bad style in
the deleted area later, as in MSO (except the incomplete undo
of paragraph styles here and at other paragraph
formattings during change tracking).

Note: see also tdf#105413 for the remaining problem: style
changes after deleted paragraphs are losing in Show changes mode.

Change-Id: Ic6c6055c2e4da61755b09a1d78b4aa8826212047
Reviewed-on: https://gerrit.libreoffice.org/59821
Tested-by: Jenkins
Reviewed-by: László Németh <nemeth@numbertext.org>