Fixed Drawing of DrawSheetStruct, so DrawSheetLabelStructs are only drawn if...

Fixed Drawing of DrawSheetStruct, so DrawSheetLabelStructs are only drawn if they are not being moved (fixes ugliness while moving PinSheets).

eeschema/class_drawsheet.cpp

@@ -257,6 +257,7 @@ void DrawSheetStruct::Draw( WinEDA_DrawPanel* panel, wxDC* DC, const wxPoint& of
     SheetLabelStruct = m_Label;
     while( SheetLabelStruct != NULL )
     {
+        if ( !(SheetLabelStruct->m_Flags & IS_MOVED) )
             SheetLabelStruct->Draw( panel, DC, offset, DrawMode, Color );
         SheetLabelStruct = (DrawSheetLabelStruct*) (SheetLabelStruct->Pnext);
     }