In theory this is to be in sync with the ODF import. In practice the old
UNO property seems not to have a proper fallback to populate the doc
model with the fillattributes, so without this even if the import result
is visible, it would be lost on ODF export.

Additionally, this detected a bug in SwUnoCursorHelper::makeRedline(),
where paragraph format redline tried to use the map of a text portion
instead of a paragraph.

Change-Id: I026e38e1990ed2a460624a8d967a16ae3fb6c512