Resolves: tdf#106261 throw away old node map for table

when generating a new one, otherwise on exporting the same table
twice to two consecutive .doc footnotes will think the second
export of the table is a level lower because it will find it
in the map and

WW8TableNodeInfo::Pointer_t WW8TableInfo::insertTableNodeInfo

does pNodeInfo->setDepth(nDepth + pNodeInfo->getDepth());
using the cached pNodeInfo depth and not a new fresh pNodeInfo of
depth 0

Change-Id: I7aa7ac6a19814910c1d19d78f04cfd9886c444c5

sw/source/filter/ww8/wrtww8.cxx

@@ -1824,8 +1824,16 @@ void MSWordExportBase::WriteSpecialText( sal_uLong nStart, sal_uLong nEnd, sal_u
     // clear linked textboxes since old ones can't be linked to frames in this section
     m_aLinkedTextboxesHelper.clear();
 
+    // tdf#106261 Reset table infos, otherwise the depth of the cells will be
+    // incorrect, in case the header/footer had table(s) and we try to export
+    // the same table second time.
+    ww8::WW8TableInfo::Pointer_t pOldTableInfo = m_pTableInfo;
+    m_pTableInfo = std::make_shared<ww8::WW8TableInfo>();
+
     WriteText();
 
+    m_pTableInfo = pOldTableInfo;
+
     m_bOutPageDescs = bOldPageDescs;
     delete m_pCurPam;                    // delete Pam
     m_pCurPam = pOldPam;