Do not clear property selection when adding new properties, but instead correct positions of any open editor controls.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63356 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/propgrid/propgridiface.cpp

@@ -587,8 +587,6 @@ void wxPropertyGridInterface::Sort( int flags )
 {
     wxPropertyGrid* pg = GetPropertyGrid();
 
-    pg->DoClearSelection();
-
     unsigned int pageIndex = 0;
 
     for (;;)
@@ -598,6 +596,10 @@ void wxPropertyGridInterface::Sort( int flags )
         page->DoSort(flags);
         pageIndex++;
     }
+
+    // Fix positions of any open editor controls
+    if ( pg )
+        pg->CorrectEditorWidgetPosY();
 }
 
 // -----------------------------------------------------------------------