### 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
Item *item = p_item;
	while (item) {
		if (item->type == ITEM_UNDERLINE) {
			return true;
		}
		item = item->parent;
	}
	return false;
}
bool RichTextLabel::_find_strikethrough(Item *p_item) {
	Item *item = p_item;
	while (item) {
		if (item->type == ITEM_STRIKETHROUGH) {
			return true;
		}
		item = item->parent;
	}
	return false;
}
void RichTextLabel::_fetch_item_fx_stack(Item *p_item, Vector<ItemFX *> &r_stack) {
	Item *item = p_item;
	while (item) {
		if (item->type == ITEM_CUSTOMFX || item->type == ITEM_SHAKE || item->type == ITEM_WAVE || item->type == ITEM_TORNADO || item->type == ITEM_RAINBOW || item->type == ITEM_PULSE) {
			r_stack.push_back(static_cast<ItemFX *>(item));
		}
		item = item->parent;
	}
}
void RichTextLabel::_normalize_subtags(Vector<String> &subtags) {