### Godot version

4.1 

### System information

Win 10

### Issue description

![image](https://github.com/godotengine/godot/assets/3350340/fb4d82dc-0301-46d4-85e8-032c32b09fcf)

When causing _"output oveflow"_ by printing a lot of text, formating breaks. Possible because enclosing tag get flushed.

Suggested solution: clear text formating after _output oveflow_ warning.

### Steps to reproduce

Print a lot of text with different text tags (like [color] or [bgcolor]) to console. For example in _process function.

### Minimal reproduction project

N/A
}
	updating_scroll = false;
	return total_height;
}
bool RichTextLabel::_validate_line_caches() {
	if (updating.load()) {
		return false;
	}
	validating.store(true);
	if (main->first_invalid_line.load() == (int)main->lines.size()) {
		MutexLock data_lock(data_mutex);
		Rect2 text_rect = _get_text_rect();
		float ctrl_height = get_size().height;
		
		float old_scroll = vscroll->get_value();
		if (main->first_invalid_font_line.load() != (int)main->lines.size()) {
			for (int i = main->first_invalid_font_line.load(); i < (int)main->lines.size(); i++) {
				_update_line_font(main, i, theme_cache.normal_font, theme_cache.normal_font_size);
			}
			main->first_resized_line.store(main->first_invalid_font_line.load());
			main->first_invalid_font_line.store(main->lines.size());
		}
		if (main->first_resized_line.load() == (int)main->lines.size()) {
			vscroll->set_value(old_scroll);
			validating.store(false);
			return true;
		}
		
		int fi = main->first_resized_line.load();
		float total_height = (fi == 0) ? 0 : _calculate_line_vertical_offset(main->lines[fi - 1]);