### Godot version

4.1.rc.custom_build. c83f912bc

### System information

Ubuntu 22.04 CI

### Issue description

When executing
```
extends Node
func _process(delta):

	var temp_variable35241 = RichTextLabel.new()
	add_child(temp_variable35241)
	temp_variable35241.set_fit_content(true)
	temp_variable35241.parse_bbcode("3188932498")
	temp_variable35241.queue_free()
```
this code freeze project in CI for at least 60 seconds

### Steps to reproduce

Above

### Minimal reproduction project

N/A
_stop_thread();
	MutexLock data_lock(data_mutex);
	if (current->type == ITEM_TABLE) {
		return;
	}
	ERR_FAIL_COND(p_image.is_null());
	ERR_FAIL_COND(p_image->get_width() == 0);
	ERR_FAIL_COND(p_image->get_height() == 0);
	ItemImage *item = memnew(ItemImage);
	if (p_region.has_area()) {
		Ref<AtlasTexture> atlas_tex = memnew(AtlasTexture);
		atlas_tex->set_atlas(p_image);
		atlas_tex->set_region(p_region);
		item->image = atlas_tex;
	} else {
		item->image = p_image;
	}
	item->color = p_color;
	item->inline_align = p_alignment;
	if (p_width > 0) {
		
		item->size.width = p_width;
		if (p_height > 0) {
			
			item->size.height = p_height;
		} else {