### 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
_normalize_subtags(subtag);
			for (int i = 0; i < subtag.size(); i++) {
				Vector<String> subtag_a = subtag[i].split("=");
				_normalize_subtags(subtag_a);
				if (subtag_a.size() == 2) {
					if (subtag_a[0] == "expand") {
						int ratio = subtag_a[1].to_int();
						if (ratio < 1) {
							ratio = 1;
						}
						set_table_column_expand(get_current_table_column(), true, ratio);
					}
				}
			}
			push_cell();
			const Color fallback_color = Color(0, 0, 0, 0);
			for (int i = 0; i < subtag.size(); i++) {
				Vector<String> subtag_a = subtag[i].split("=");
				_normalize_subtags(subtag_a);
				if (subtag_a.size() == 2) {
					if (subtag_a[0] == "border") {
						Color color = Color::from_string(subtag_a[1], fallback_color);
						set_cell_border_color(color);
					} else if (subtag_a[0] == "bg") {
						Vector<String> subtag_b = subtag_a[1].split(",");
						_normalize_subtags(subtag_b);
						if (subtag_b.size() == 2) {
							Color color1 = Color::from_string(subtag_b[0], fallback_color);
							Color color2 = Color::from_string(subtag_b[1], fallback_color);
							set_cell_row_background_color(color1, color2);