### Godot version

v4.0.beta17.official [c40020513]

### System information

Windows 11 Pro

### Issue description

In AnimationPlayer, Audio Playback Track does not work in the middle of playback, as in v3.5.1.stable.official [6fed1ffa3]

### Steps to reproduce

(Do on both versions)
Add root node -> Node
Add AnimationPlayer and AudioStreamPlayer
![image](https://user-images.githubusercontent.com/91904840/216308659-d0327455-73e9-48d6-93b3-b33f4c8f1ccc.png)

Add new animation, Add Audio Playback Track
Drag & Drop audio test.ogg on track with a time offset of 1
![image](https://user-images.githubusercontent.com/91904840/216308947-391718d9-1e9c-4418-9f82-3cc9b6075cff.png)

Play animation before the start of the track, at the beginning of the track and somewhere during the track (turn on the sound)

v 3.5.1

https://user-images.githubusercontent.com/91904840/216314742-80982bb9-23a3-4eb5-8e98-249c3531aa66.mp4

v 4.0.beta17


https://user-images.githubusercontent.com/91904840/216314798-23f212f2-c386-4dc1-8946-648e5f8f2467.mp4




You'll notice, that on version 4.0.beta17 Audio Playback Track does not work in the middle of playback!




### Minimal reproduction project

Normal playback
[godot_3.5.1.zip](https://github.com/godotengine/godot/files/10568517/godot_3.5.1.zip)

Cracked playback
[godot_4.0.beta17.zip](https://github.com/godotengine/godot/files/10568519/godot_4.0.beta17.zip)

ClassDB::bind_method(D_METHOD("restore"), &AnimatedValuesBackup::restore);
}
#endif
bool AnimationPlayer::_set(const StringName &p_name, const Variant &p_value) {
	String name = p_name;
	if (name.begins_with("playback/play")) { 
		set_current_animation(p_value);
	} else if (name.begins_with("anims/")) {
		
		String which = name.get_slicec('/', 1);
		Ref<Animation> anim = p_value;
		Ref<AnimationLibrary> al;
		if (!has_animation_library(StringName())) {
			al.instantiate();
			add_animation_library(StringName(), al);
		} else {
			al = get_animation_library(StringName());
		}
		al->add_animation(which, anim);
	} else if (name.begins_with("libraries")) {
		Dictionary d = p_value;