sw: fix crash exporting ooo72077-2.odt to DOCX

There is an assertion about empty lastOpenCell vector in
DocxAttributeOutput::SyncNodelessCells(); since i don't know
if this splitting should be done at all for paragraphs in a table,
let's disable it for now.

(regression from c1d58c46)

Change-Id: Ied67b6047b48689cba3c41b9d0f68b7c2a257ba0

sw/source/filter/ww8/wrtw8nds.cxx

@@ -2274,7 +2274,8 @@ void MSWordExportBase::OutputTextNode( SwTextNode& rNode )
 
     SwSoftPageBreakList softBreakList;
     // Let's decide if we need to split the paragraph because of a section break
-    bool bNeedParaSplit = NeedTextNodeSplit( rNode, softBreakList );
+    bool bNeedParaSplit = NeedTextNodeSplit( rNode, softBreakList )
+                        && !IsInTable();
 
     auto aBreakIt = softBreakList.begin();
     // iterate through portions on different pages