### 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(!selection.enabled, false);
	if (p_string.size() == 0) {
		selection.active = false;
		return false;
	}
	int char_idx = p_search_previous ? -1 : 0;
	int current_line = 0;
	int to_line = main->first_invalid_line.load();
	int ending_line = to_line - 1;
	if (p_from_selection && selection.active) {
		
		char_idx = p_search_previous ? selection.from_char - 1 : selection.to_char;