tdf#152636 writerfilter: no w:br in DMLShapes

Don't write postponed column and page breaks into DML shape
paragraphs.

No existing unit tests found that match this criteria.
The example file I have is not appropriate as a unit test,
and it too easily fails to match when any random change
is made to minimize/scrub it.

Change-Id: Iced1399f76caf97362a5ba47a325233b9f009fcf
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/144779
Tested-by: Jenkins
Reviewed-by: Justin Luth <jluth@mail.com>
diff --git a/sw/source/filter/ww8/docxattributeoutput.cxx b/sw/source/filter/ww8/docxattributeoutput.cxx
index 3e4bca8..0bc7e87 100644
--- a/sw/source/filter/ww8/docxattributeoutput.cxx
+++ b/sw/source/filter/ww8/docxattributeoutput.cxx
@@ -1545,7 +1545,8 @@ void DocxAttributeOutput::EndParagraphProperties(const SfxItemSet& rParagraphMar
        m_pSerializer->endElementNS(XML_w, XML_smartTag);
    }

    if ( m_nColBreakStatus == COLBRK_WRITE || m_nColBreakStatus == COLBRK_WRITEANDPOSTPONE )
    if ((m_nColBreakStatus == COLBRK_WRITE || m_nColBreakStatus == COLBRK_WRITEANDPOSTPONE)
        && !m_rExport.SdrExporter().IsDMLAndVMLDrawingOpen())
    {
        m_pSerializer->startElementNS(XML_w, XML_r);
        m_pSerializer->singleElementNS(XML_w, XML_br, FSNS(XML_w, XML_type), "column");
@@ -1557,7 +1558,8 @@ void DocxAttributeOutput::EndParagraphProperties(const SfxItemSet& rParagraphMar
            m_nColBreakStatus = COLBRK_NONE;
    }

    if ( m_bPostponedPageBreak && !m_bWritingHeaderFooter )
    if (m_bPostponedPageBreak && !m_bWritingHeaderFooter
        && !m_rExport.SdrExporter().IsDMLAndVMLDrawingOpen())
    {
        m_pSerializer->startElementNS(XML_w, XML_r);
        m_pSerializer->singleElementNS(XML_w, XML_br, FSNS(XML_w, XML_type), "page");