### Godot version

master ([06ccbfe](https://github.com/godotengine/godot/commit/06ccbfe8eec6e840db3df2360dc2804386f940b8))

### System information

PopOS 22.04

### Issue description

Sometimes the doc page is broken when the engine is closed and then restarted.
Closing the doc and opening it again fixes it.

![2023-05-27_22-15](https://github.com/godotengine/godot/assets/3624853/ed202a55-03e8-420a-bc1c-ccfc7f7cd02a)


### Steps to reproduce

- Open a documentation page for any node
- Restart Godot

### Minimal reproduction project

NA

EDIT : Added the commit hash @Calinou 
if (text == p_bbcode) {
		return;
	}
	text = p_bbcode;
	_apply_translation();
}
void RichTextLabel::_apply_translation() {
	String xl_text = atr(text);
	if (use_bbcode) {
		parse_bbcode(xl_text);
	} else { 
		clear();
		add_text(xl_text);
	}
}
String RichTextLabel::get_text() const {
	return text;
}
void RichTextLabel::set_use_bbcode(bool p_enable) {
	if (use_bbcode == p_enable) {
		return;
	}
	use_bbcode = p_enable;
	notify_property_list_changed();
	_apply_translation();
}
bool RichTextLabel::is_using_bbcode() const {