Fix infinite looping memory devouring on refreshing table with date grouping.

It so happens that both group info and date info can be enabled, in which
case the date info takes precedence.

sc/source/core/data/dpdimsave.cxx

@@ -466,7 +466,13 @@ void ScDPSaveNumGroupDimension::AddToData( ScDPGroupTableData& rData ) const
 void ScDPSaveNumGroupDimension::AddToCache(ScDPCache& rCache) const
 {
     long nDim = rCache.GetDimensionIndex(aDimensionName);
-    if (aGroupInfo.mbEnable)
+    if (aDateInfo.mbEnable)
+    {
+        // Date grouping
+        SvNumberFormatter* pFormatter = rCache.GetDoc()->GetFormatTable();
+        fillDateGroupDimension(rCache, aDateInfo, nDim, nDim, nDatePart, pFormatter);
+    }
+    else if (aGroupInfo.mbEnable)
     {
         // Number-range grouping
 
@@ -558,12 +564,6 @@ void ScDPSaveNumGroupDimension::AddToCache(ScDPCache& rCache) const
         aItem.SetRangeLast();
         rCache.SetGroupItem(nDim, aItem);
     }
-    else if (aDateInfo.mbEnable)
-    {
-        // Date grouping
-        SvNumberFormatter* pFormatter = rCache.GetDoc()->GetFormatTable();
-        fillDateGroupDimension(rCache, aDateInfo, nDim, nDim, nDatePart, pFormatter);
-    }
 }
 
 void ScDPSaveNumGroupDimension::SetGroupInfo( const ScDPNumGroupInfo& rNew )