### 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[1] == "top" || subtag[1] == "t") {
					alignment = INLINE_ALIGNMENT_TOP;
				} else if (subtag[1] == "center" || subtag[1] == "c") {
					alignment = INLINE_ALIGNMENT_CENTER;
				} else if (subtag[1] == "bottom" || subtag[1] == "b") {
					alignment = INLINE_ALIGNMENT_BOTTOM;
				}
			}
			int row = -1;
			if (subtag.size() > 3) {
				row = subtag[3].to_int();
			}
			push_table(columns, (InlineAlignment)alignment, row);
			pos = brk_end + 1;
			tag_stack.push_front("table");
		} else if (tag == "cell") {
			push_cell();
			pos = brk_end + 1;
			tag_stack.push_front(tag);
		} else if (tag.begins_with("cell=")) {
			int ratio = tag.substr(5, tag.length()).to_int();
			if (ratio < 1) {
				ratio = 1;
			}
			set_table_column_expand(get_current_table_column(), true, ratio);
			push_cell();
			pos = brk_end + 1;
			tag_stack.push_front("cell");
		} else if (tag.begins_with("cell ")) {
			Vector<String> subtag = tag.substr(5, tag.length()).split(" ");