### 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
Size2 ctrl_size = get_size();
	
	for (int line = 0; line < l.text_buf->get_line_count(); line++) {
		if (line > 0) {
			off.y += theme_cache.line_separation;
		}
		if (p_ofs.y + off.y >= ctrl_size.height) {
			break;
		}
		const Size2 line_size = l.text_buf->get_line_size(line);
		if (p_ofs.y + off.y + line_size.y <= 0) {
			off.y += line_size.y;
			continue;
		}
		float width = l.text_buf->get_width();
		float length = line_size.x;
		
		line_count++;
		if (rtl) {
			off.x = p_width - l.offset.x - width;
			if (!lrtl && p_frame == main) { 
				off.x -= scroll_w;
			}
		} else {
			off.x = l.offset.x;
			if (lrtl && p_frame == main) { 
				off.x += scroll_w;
			}
		}