tdf#137318 sw_redlinehide: fix JoinNext() if deleted node contains redlines

The GetRedlineMergeFlag() of the deleted node is None also if there are
deletions contained completely inside the node, but in this case the
merged node does need a MergedPara, so check if the deleted node had a
frame that has a MergedPara in addition to the flag (which remains as
an "optimization").

(regression from d258fc29560baa5ecae03ebc2740e11420643e27)

Change-Id: I44456f230374ec1de159106678e80fb4670c9f33
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127011
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>

0 files changed, 0 insertions, 0 deletions