i121681 - Wrong sorting of values in Calc

chart2/source/view/main/VDataSeries.cxx

@@ -309,7 +309,7 @@ void VDataSeries::doSortByXValues()
         }
 
         //do sort
-        std::sort( aTmp.begin(), aTmp.end(), lcl_LessXOfPoint() );
+        std::stable_sort( aTmp.begin(), aTmp.end(), lcl_LessXOfPoint() );
 
         //fill the sorted points back to the mambers
         m_aValues_X.Doubles.realloc( m_nPointCount );