sw: docx: avoid GrabBag checks without m_bStartedParaSdt flag

Change-Id: If5c903030c624cbe2552cebfb011f912648929bf
Reviewed-on: https://gerrit.libreoffice.org/64867
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

sw/source/filter/ww8/docxattributeoutput.cxx

@@ -367,6 +367,8 @@ void DocxAttributeOutput::StartParagraph( ww8::WW8TableNodeInfo::Pointer_t pText
     // would normally arrive, it would be too late (would be after the
     // paragraph start has been written).
     bool bEndParaSdt = false;
+    if (m_bStartedParaSdt)
+    {
         SwTextNode* pTextNode = m_rExport.m_pCurPam->GetNode().GetTextNode();
         if (pTextNode && pTextNode->GetpSwAttrSet())
         {
@@ -378,6 +380,7 @@ void DocxAttributeOutput::StartParagraph( ww8::WW8TableNodeInfo::Pointer_t pText
                 bEndParaSdt = m_bStartedParaSdt && rMap.find("ParaSdtEndBefore") != rMap.end();
             }
         }
+    }
     // TODO also avoid multiline paragraphs in those SDT types for shape text
     bool bOneliner = m_bStartedParaSdt && !m_rExport.SdrExporter().IsDMLAndVMLDrawingOpen() && lcl_isOnelinerSdt(m_aStartedParagraphSdtPrAlias);
     if (bEndParaSdt || (m_bStartedParaSdt && m_bHadSectPr) || bOneliner)