### 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
ERR_FAIL_COND_V(p_frame == nullptr, p_h);
	ERR_FAIL_COND_V(p_line < 0 || p_line >= (int)p_frame->lines.size(), p_h);
	Line &l = p_frame->lines[p_line];
	MutexLock lock(l.text_buf->get_mutex());
	BitField<TextServer::LineBreakFlag> autowrap_flags = TextServer::BREAK_MANDATORY;
	switch (autowrap_mode) {
		case TextServer::AUTOWRAP_WORD_SMART:
			autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_ADAPTIVE | TextServer::BREAK_MANDATORY;
			break;
		case TextServer::AUTOWRAP_WORD:
			autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_MANDATORY;
			break;
		case TextServer::AUTOWRAP_ARBITRARY:
			autowrap_flags = TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_MANDATORY;
			break;
		case TextServer::AUTOWRAP_OFF:
			break;
	}
	autowrap_flags = autowrap_flags | TextServer::BREAK_TRIM_EDGE_SPACES;
	
	l.text_buf->clear();
	l.text_buf->set_break_flags(autowrap_flags);
	l.text_buf->set_justification_flags(_find_jst_flags(l.from));
	l.char_offset = *r_char_offset;
	l.char_count = 0;
	
	l.offset.x = _find_margin(l.from, p_base_font, p_base_font_size);
	l.text_buf->set_width(p_width - l.offset.x);
	l.text_buf->set_alignment(_find_alignment(l.from));