Forced no duplication of animation data

scene/animation/animation_player.cpp

@@ -158,7 +158,7 @@ void AnimationPlayer::_get_property_list(List<PropertyInfo> *p_list) const {
 
 	for (Map<StringName, AnimationData>::Element *E = animation_set.front(); E; E = E->next()) {
 
-		anim_names.push_back(PropertyInfo(Variant::OBJECT, "anims/" + String(E->key()), PROPERTY_HINT_RESOURCE_TYPE, "Animation", PROPERTY_USAGE_NOEDITOR));
+		anim_names.push_back(PropertyInfo(Variant::OBJECT, "anims/" + String(E->key()), PROPERTY_HINT_RESOURCE_TYPE, "Animation", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_DO_NOT_SHARE_ON_DUPLICATE));
 		if (E->get().next != StringName())
 			anim_names.push_back(PropertyInfo(Variant::STRING, "next/" + String(E->key()), PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR));
 		names.push_back(E->key());