### Godot version

4.2 RC2

### System information

Any

### Issue description

https://github.com/godotengine/godot/assets/61938263/42ed582f-7b87-424c-8d19-ba0650ead5aa

It should not be reset by pausing.

### Steps to reproduce

Pause AnimationPlaybackTrack

### Minimal reproduction project

N/A
#include "animation_mixer.h"
#include "core/config/engine.h"
#include "scene/animation/animation_player.h"
#include "scene/resources/animation.h"
#include "scene/scene_string_names.h"
#include "servers/audio/audio_stream.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_node.h"
#include "editor/editor_undo_redo_manager.h"
#endif 
bool AnimationMixer::_set(const StringName &p_name, const Variant &p_value) {
	String name = p_name;
#ifndef DISABLE_DEPRECATED
	if (name.begins_with("anims/")) {
		
		String which = name.get_slicec('/', 1);
		Ref<Animation> anim = p_value;