coverity#1308431 wiggle code to see if this silences coverity

Change-Id: I44eae735b710332d87f2f642911e988c796457cd
diff --git a/xmloff/source/draw/shapeimport.cxx b/xmloff/source/draw/shapeimport.cxx
index c155b54..322d27c 100644
--- a/xmloff/source/draw/shapeimport.cxx
+++ b/xmloff/source/draw/shapeimport.cxx
@@ -874,8 +874,10 @@ void ShapeSortContext::popGroupAndSort()
    {
        while( nIndex < rHint.nShould && !maUnsortedList.empty() )
        {
            ZOrderHint aGapHint( *maUnsortedList.begin() );
            maUnsortedList.erase(maUnsortedList.begin());
            auto it = maUnsortedList.begin();

            ZOrderHint aGapHint(*it);
            maUnsortedList.erase(it);

            moveShape( aGapHint.nIs, nIndex++ );
        }