Temporary workaround for video filter wrapper in qt4 (clone).

modules/gui/qt4/components/extended_panels.cpp

@@ -259,7 +259,8 @@ void ExtVideo::ChangeVFiltersString( const char *psz_name, bool b_add )
     const char *psz_module_name = psz_name;
     if( !strcmp( psz_name, "magnify" ) ||
         !strcmp( psz_name, "puzzle" ) ||
-        !strcmp( psz_name, "logo" ) )
+        !strcmp( psz_name, "logo" ) ||
+        !strcmp( psz_name, "clone" ) )
         psz_module_name = "video_filter_wrapper";
 
     module_t *p_obj = module_find( psz_module_name );