### Godot version

v4.1.stable.official [970459615]

### System information

Godot v4.1.stable - Windows 10.0.22621 - Vulkan (Forward+) - dedicated NVIDIA GeForce MX330 (NVIDIA; 30.0.15.1169) - 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz (8 Threads)

### Issue description

Calling `RichTextLabel`'s `select_all` method has no visual indicator, but it must have one. 

### Steps to reproduce

- Add `RichTextLabel` node
- Set `selection_enabled` value to be `true`
- Call `$RichTextLabel.select_all() `method in `_ready`

### Minimal reproduction project

[RichTextLabel_bug.zip](https://github.com/godotengine/godot/files/12098913/RichTextLabel_bug.zip)

Item *c_item = nullptr;
	bool outside;
	const_cast<RichTextLabel *>(this)->_find_click(main, p_pos, nullptr, nullptr, &c_item, nullptr, &outside, true);
	String description;
	if (c_item && !outside && const_cast<RichTextLabel *>(this)->_find_hint(c_item, &description)) {
		return description;
	} else {
		return Control::get_tooltip(p_pos);
	}
}
void RichTextLabel::_find_frame(Item *p_item, ItemFrame **r_frame, int *r_line) {