### 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
} else {
				push_font(fc, fnt_size);
			}
			pos = brk_end + 1;
			tag_stack.push_front("font");
		} else if (tag.begins_with("outline_size=")) {
			int fnt_size = tag.substr(13, tag.length()).to_int();
			if (fnt_size > 0) {
				push_outline_size(fnt_size);
			}
			pos = brk_end + 1;
			tag_stack.push_front("outline_size");
		} else if (bbcode_name == "fade") {
			int start_index = 0;
			OptionMap::Iterator start_option = bbcode_options.find("start");
			if (start_option) {
				start_index = start_option->value.to_int();
			}
			int length = 10;
			OptionMap::Iterator length_option = bbcode_options.find("length");
			if (length_option) {
				length = length_option->value.to_int();
			}
			push_fade(start_index, length);
			pos = brk_end + 1;
			tag_stack.push_front("fade");
		} else if (bbcode_name == "shake") {
			int strength = 5;
			OptionMap::Iterator strength_option = bbcode_options.find("level");
			if (strength_option) {