### 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
}
						if (subtag_b.size() == 1) {
							Color color1 = Color::from_string(subtag_a[1], fallback_color);
							set_cell_row_background_color(color1, color1);
						}
					} else if (subtag_a[0] == "padding") {
						Vector<String> subtag_b = subtag_a[1].split(",");
						_normalize_subtags(subtag_b);
						if (subtag_b.size() == 4) {
							set_cell_padding(Rect2(subtag_b[0].to_float(), subtag_b[1].to_float(), subtag_b[2].to_float(), subtag_b[3].to_float()));
						}
					}
				}
			}
			pos = brk_end + 1;
			tag_stack.push_front("cell");
		} else if (tag == "u") {
			
			push_underline();
			pos = brk_end + 1;
			tag_stack.push_front(tag);
		} else if (tag == "s") {
			
			push_strikethrough();
			pos = brk_end + 1;
			tag_stack.push_front(tag);
		} else if (tag == "lb") {
			add_text("[");
			pos = brk_end + 1;
		} else if (tag == "rb") {