### 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
if ((int)p_frame->lines.size() - 1 <= p_frame->first_invalid_line) {
		p_frame->first_invalid_line = (int)p_frame->lines.size() - 1;
	}
}
void RichTextLabel::add_text(const String &p_text) {
	_stop_thread();
	MutexLock data_lock(data_mutex);
	if (current->type == ITEM_TABLE) {
		return; 
	}
	int pos = 0;
	while (pos < p_text.length()) {
		int end = p_text.find("\n", pos);
		String line;
		bool eol = false;
		if (end == -1) {
			end = p_text.length();
		} else {
			eol = true;
		}
		if (pos == 0 && end == p_text.length()) {
			line = p_text;
		} else {