tdf#81345 docx import fix default page break regression

"regression" from 4e653d15eff26aa5283d8ba20611893f4c573f57

If there are new style elements, then don't treat a
default break in columns as a continuous break.

This fixes both round-tripping, and initial import of
columns and headers on this particular document. Since
MS and LO treat sections so differently, it is a balancing
act of what to change.

Change-Id: I9c79bc1246108da6a5ebbf744acbcfcbb9d33d48
Reviewed-on: https://gerrit.libreoffice.org/28728
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Justin Luth <justin_luth@sil.org>
diff --git a/sw/qa/extras/ooxmlexport/data/tdf81345.docx b/sw/qa/extras/ooxmlexport/data/tdf81345.docx
new file mode 100644
index 0000000..4f18b1e
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/tdf81345.docx
Binary files differ
diff --git a/sw/qa/extras/ooxmlexport/ooxmlexport4.cxx b/sw/qa/extras/ooxmlexport/ooxmlexport4.cxx
index b837ae2..5da3ee2 100644
--- a/sw/qa/extras/ooxmlexport/ooxmlexport4.cxx
+++ b/sw/qa/extras/ooxmlexport/ooxmlexport4.cxx
@@ -998,6 +998,18 @@ DECLARE_OOXMLEXPORT_TEST(testTdf92724_continuousBreaksComplex,"tdf92724_continuo
    CPPUNIT_ASSERT_EQUAL(sal_Int16(3), xCursor->getPage());
}

DECLARE_OOXMLEXPORT_TEST(testTdf81345_045Original,"tdf81345.docx")
{
    //Header wasn't replaced  and columns were missing because no new style was created.
    uno::Reference<frame::XModel> xModel(mxComponent, uno::UNO_QUERY);
    uno::Reference<text::XTextViewCursorSupplier> xTextViewCursorSupplier(xModel->getCurrentController(), uno::UNO_QUERY);
    uno::Reference<text::XPageCursor> xCursor(xTextViewCursorSupplier->getViewCursor(), uno::UNO_QUERY);

    xCursor->jumpToPage(2);
    OUString pageStyleName = getProperty<OUString>(xCursor, "PageStyleName");
    CPPUNIT_ASSERT(pageStyleName != "Standard");
}

CPPUNIT_PLUGIN_IMPLEMENT();

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/writerfilter/source/dmapper/PropertyMap.cxx b/writerfilter/source/dmapper/PropertyMap.cxx
index b138a28..c0e646c 100644
--- a/writerfilter/source/dmapper/PropertyMap.cxx
+++ b/writerfilter/source/dmapper/PropertyMap.cxx
@@ -1170,9 +1170,12 @@ void SectionPropertyMap::CloseSectionGroup( DomainMapper_Impl& rDM_Impl )
    }

    // depending on the break type no page styles should be created
    // If the section type is missing, but we have columns, then this should be
    // If the section type is missing, but we have columns without new style info, then this should be
    // handled as a continuous section break.
    if(m_nBreakType == static_cast<sal_Int32>(NS_ooxml::LN_Value_ST_SectionMark_continuous) || (m_nBreakType == -1 && m_nColumnCount > 0))
    const bool bTreatAsContinuous = m_nBreakType == -1
                                    && m_nColumnCount > 0
                                    && (m_bIsFirstSection || m_sFollowPageStyleName.isEmpty() || (m_sFirstPageStyleName.isEmpty() && m_bTitlePage));
    if(m_nBreakType == static_cast<sal_Int32>(NS_ooxml::LN_Value_ST_SectionMark_continuous) || bTreatAsContinuous)
    {
        //todo: insert a section or access the already inserted section
        uno::Reference< beans::XPropertySet > xSection =