### 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)

ClassDB::bind_method(D_METHOD("get_selection_to"), &RichTextLabel::get_selection_to);
	ClassDB::bind_method(D_METHOD("select_all"), &RichTextLabel::select_all);
	ClassDB::bind_method(D_METHOD("get_selected_text"), &RichTextLabel::get_selected_text);
	ClassDB::bind_method(D_METHOD("deselect"), &RichTextLabel::deselect);
	ClassDB::bind_method(D_METHOD("parse_bbcode", "bbcode"), &RichTextLabel::parse_bbcode);
	ClassDB::bind_method(D_METHOD("append_text", "bbcode"), &RichTextLabel::append_text);
	ClassDB::bind_method(D_METHOD("get_text"), &RichTextLabel::get_text);
	ClassDB::bind_method(D_METHOD("is_ready"), &RichTextLabel::is_ready);
	ClassDB::bind_method(D_METHOD("set_threaded", "threaded"), &RichTextLabel::set_threaded);
	ClassDB::bind_method(D_METHOD("is_threaded"), &RichTextLabel::is_threaded);
	ClassDB::bind_method(D_METHOD("set_progress_bar_delay", "delay_ms"), &RichTextLabel::set_progress_bar_delay);
	ClassDB::bind_method(D_METHOD("get_progress_bar_delay"), &RichTextLabel::get_progress_bar_delay);
	ClassDB::bind_method(D_METHOD("set_visible_characters", "amount"), &RichTextLabel::set_visible_characters);
	ClassDB::bind_method(D_METHOD("get_visible_characters"), &RichTextLabel::get_visible_characters);
	ClassDB::bind_method(D_METHOD("get_visible_characters_behavior"), &RichTextLabel::get_visible_characters_behavior);
	ClassDB::bind_method(D_METHOD("set_visible_characters_behavior", "behavior"), &RichTextLabel::set_visible_characters_behavior);
	ClassDB::bind_method(D_METHOD("set_visible_ratio", "ratio"), &RichTextLabel::set_visible_ratio);
	ClassDB::bind_method(D_METHOD("get_visible_ratio"), &RichTextLabel::get_visible_ratio);
	ClassDB::bind_method(D_METHOD("get_character_line", "character"), &RichTextLabel::get_character_line);
	ClassDB::bind_method(D_METHOD("get_character_paragraph", "character"), &RichTextLabel::get_character_paragraph);
	ClassDB::bind_method(D_METHOD("get_total_character_count"), &RichTextLabel::get_total_character_count);
	ClassDB::bind_method(D_METHOD("set_use_bbcode", "enable"), &RichTextLabel::set_use_bbcode);
	ClassDB::bind_method(D_METHOD("is_using_bbcode"), &RichTextLabel::is_using_bbcode);
	ClassDB::bind_method(D_METHOD("get_line_count"), &RichTextLabel::get_line_count);
	ClassDB::bind_method(D_METHOD("get_visible_line_count"), &RichTextLabel::get_visible_line_count);
	ClassDB::bind_method(D_METHOD("get_paragraph_count"), &RichTextLabel::get_paragraph_count);
	ClassDB::bind_method(D_METHOD("get_visible_paragraph_count"), &RichTextLabel::get_visible_paragraph_count);
	ClassDB::bind_method(D_METHOD("get_content_height"), &RichTextLabel::get_content_height);
	ClassDB::bind_method(D_METHOD("get_content_width"), &RichTextLabel::get_content_width);
	ClassDB::bind_method(D_METHOD("get_line_offset", "line"), &RichTextLabel::get_line_offset);