release lastanchorpos before closing redlines

Change-Id: I2fae6c2a6e44bdcd3c0d7f7a8cfa4a96973cc640
Reviewed-on: https://gerrit.libreoffice.org/48505Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sw/source/filter/ww8/ww8par.cxx

@@ -5302,6 +5302,7 @@ ErrCode SwWW8ImplReader::CoreLoad(WW8Glossary const *pGloss)
     m_pTableStream = nullptr;
 
     DeleteCtrlStack();
+    m_pLastAnchorPos.reset();//ensure this is deleted before UpdatePageDescs
     m_xRedlineStack->closeall(*m_pPaM->GetPoint());
     m_xRedlineStack.reset();
     DeleteAnchorStack();
@@ -5391,7 +5392,6 @@ ErrCode SwWW8ImplReader::CoreLoad(WW8Glossary const *pGloss)
 
     mpCursor.reset();
     m_pPaM = nullptr;
-    m_pLastAnchorPos.reset();//ensure this is deleted before UpdatePageDescs
 
     // remove extra paragraphs after attribute ctrl
     // stacks etc. are destroyed, and before fields