### 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
ClassDB::bind_method(D_METHOD("add_animation_library", "name", "library"), &AnimationMixer::add_animation_library);
	ClassDB::bind_method(D_METHOD("remove_animation_library", "name"), &AnimationMixer::remove_animation_library);
	ClassDB::bind_method(D_METHOD("rename_animation_library", "name", "newname"), &AnimationMixer::rename_animation_library);
	ClassDB::bind_method(D_METHOD("has_animation_library", "name"), &AnimationMixer::has_animation_library);
	ClassDB::bind_method(D_METHOD("get_animation_library", "name"), &AnimationMixer::get_animation_library);
	ClassDB::bind_method(D_METHOD("get_animation_library_list"), &AnimationMixer::_get_animation_library_list);
	ClassDB::bind_method(D_METHOD("has_animation", "name"), &AnimationMixer::has_animation);
	ClassDB::bind_method(D_METHOD("get_animation", "name"), &AnimationMixer::get_animation);
	ClassDB::bind_method(D_METHOD("get_animation_list"), &AnimationMixer::_get_animation_list);
	
	ClassDB::bind_method(D_METHOD("set_active", "active"), &AnimationMixer::set_active);
	ClassDB::bind_method(D_METHOD("is_active"), &AnimationMixer::is_active);
	ClassDB::bind_method(D_METHOD("set_deterministic", "deterministic"), &AnimationMixer::set_deterministic);
	ClassDB::bind_method(D_METHOD("is_deterministic"), &AnimationMixer::is_deterministic);
	ClassDB::bind_method(D_METHOD("set_root_node", "path"), &AnimationMixer::set_root_node);
	ClassDB::bind_method(D_METHOD("get_root_node"), &AnimationMixer::get_root_node);
	ClassDB::bind_method(D_METHOD("set_callback_mode_process", "mode"), &AnimationMixer::set_callback_mode_process);
	ClassDB::bind_method(D_METHOD("get_callback_mode_process"), &AnimationMixer::get_callback_mode_process);