BC_ThemeSet *existing_image_set = title[0] ? get_image_set_object(title) : 0;
if( existing_image_set ) {
image_sets.remove_object(existing_image_set);
+ last_image_set = 0;
+ last_image_data = 0;
}
BC_ThemeSet *result = new BC_ThemeSet(total, 0, title);