### 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
switch (track_type) {
									case Animation::TYPE_POSITION_3D: {
										track_xform->init_loc = reset_anim->track_get_key_value(rt, 0);
									} break;
									case Animation::TYPE_ROTATION_3D: {
										track_xform->init_rot = reset_anim->track_get_key_value(rt, 0);
									} break;
									case Animation::TYPE_SCALE_3D: {
										track_xform->init_scale = reset_anim->track_get_key_value(rt, 0);
									} break;
									default: {
									}
								}
							}
						}
#endif 
					} break;
					case Animation::TYPE_BLEND_SHAPE: {
#ifndef _3D_DISABLED
						if (path.get_subname_count() != 1) {
							ERR_PRINT("AnimationMixer: '" + String(E) + "', blend shape track does not contain a blend shape subname:  '" + String(path) + "'.");
							continue;
						}
						MeshInstance3D *mesh_3d = Object::cast_to<MeshInstance3D>(child);
						if (!mesh_3d) {
							ERR_PRINT("AnimationMixer: '" + String(E) + "', blend shape track does not point to MeshInstance3D:  '" + String(path) + "'.");
							continue;
						}
						StringName blend_shape_name = path.get_subname(0);
						int blend_shape_idx = mesh_3d->find_blend_shape_by_name(blend_shape_name);