MSWordExportBase::OutputSectionBreaks: avoid fake section breaks

Regression from ee9f23bb (docx export:
invalid sectPr added at the beginning of the doc, 2013-01-10), the
problem was that we even tried to generate section breaks at places
where the two page styles are in practice the same.

Change-Id: Iccf91ce542d9b075b93da25bcd42236db667e3d4

sw/qa/extras/ooxmlexport/ooxmlexport.cxx

@@ -2532,7 +2532,7 @@ DECLARE_OOXMLEXPORT_TEST(testFdo77718, "fdo77718.docx")
 
 DECLARE_OOXMLEXPORT_TEST(testTableCurruption, "tableCurrupt.docx")
 {
-    xmlDocPtr pXmlDoc = parseExport("word/header4.xml");
+    xmlDocPtr pXmlDoc = parseExport("word/header2.xml");
     if (!pXmlDoc)
         return;
     CPPUNIT_ASSERT(pXmlDoc) ;
@@ -2635,7 +2635,7 @@ DECLARE_OOXMLEXPORT_TEST(testOLEObjectinHeader, "2129393649.docx")
     // Problem was relationship entry for oleobject from header was
     // exported into document.xml.rels file because of this rels file
     // for headers were missing from document/word/rels.
-    xmlDocPtr pXmlDoc = parseExport("word/_rels/header3.xml.rels");
+    xmlDocPtr pXmlDoc = parseExport("word/_rels/header1.xml.rels");
     if(!pXmlDoc)
         return;
 
@@ -2971,12 +2971,12 @@ DECLARE_OOXMLEXPORT_TEST(testContentTypeOLE, "fdo77759.docx")
 
 DECLARE_OOXMLEXPORT_TEST(testfdo78420, "fdo78420.docx")
 {
-    xmlDocPtr pXmlHeader = parseExport("word/header3.xml");
+    xmlDocPtr pXmlHeader = parseExport("word/header2.xml");
 
     if (!pXmlHeader)
        return;
 
-    xmlDocPtr pXmlHeaderRels = parseExport("word/_rels/header3.xml.rels");
+    xmlDocPtr pXmlHeaderRels = parseExport("word/_rels/header2.xml.rels");
     if(!pXmlHeaderRels)
        return;
 
@@ -3409,6 +3409,13 @@ DECLARE_OOXMLEXPORT_TEST(testPlausableBorder, "plausable-border.docx")
         assertXPath(pXmlDoc, "/w:document/w:body/w:p/w:r/w:br", 1);
 }
 
+DECLARE_OOXMLEXPORT_TEST(testUnwantedSectionBreak, "unwanted-section-break.docx")
+{
+    if (xmlDocPtr pXmlDoc = parseExport())
+        // This was 2: an additional sectPr was added to the document.
+        assertXPath(pXmlDoc, "//w:sectPr", 1);
+}
+
 DECLARE_OOXMLEXPORT_TEST(testfdo80897 , "fdo80897.docx")
 {
     xmlDocPtr pXmlDoc = parseExport();

sw/source/filter/ww8/ww8atr.cxx

@@ -443,7 +443,7 @@ void MSWordExportBase::OutputSectionBreaks( const SfxItemSet *pSet, const SwNode
             if ( isCellOpen && ( pAktPageDesc->GetName() != pPageDesc->GetName() ) )
                 pSet = NULL;
         }
-        else
+        else if (!sw::util::IsPlausableSingleWordSection(pAktPageDesc->GetFirstMaster(), pPageDesc->GetMaster()))
         {
             bBreakSet = true;
             bNewPageDesc = true;