fdo#60740: Handle empty paragraphs correctly.

Change-Id: I47d4f60daec82d2b6a4b5e8f20b8cb6484c55057

editeng/source/editeng/editobj.cxx

@@ -902,6 +902,13 @@ void EditTextObjectImpl::GetAllSectionAttributes( std::vector<editeng::SectionAt
     {
         size_t nPara = distance(aParaBorders.begin(), it);
         const SectionBordersType& rBorders = *it;
+        if (rBorders.size() == 1 && rBorders[0] == 0)
+        {
+            // Empty paragraph. Push an empty section.
+            aAttrs.push_back(editeng::SectionAttribute(nPara, 0, 0));
+            continue;
+        }
+
         SectionBordersType::const_iterator itBorder = rBorders.begin(), itBorderEnd = rBorders.end();
         size_t nPrev = *itBorder;
         size_t nCur;

sc/source/filter/xml/xmlexprt.cxx

@@ -3067,9 +3067,6 @@ void flushParagraph(
     const ScXMLEditAttributeMap& rAttrMap,
     std::vector<editeng::SectionAttribute>::const_iterator it, std::vector<editeng::SectionAttribute>::const_iterator itEnd )
 {
-    if (it == itEnd)
-        return;
-
     OUString aElemName = rExport.GetNamespaceMap().GetQNameByKey(
         XML_NAMESPACE_TEXT, GetXMLToken(XML_P));
     SvXMLElementExport aElemP(rExport, aElemName, false, false);