1 files changed, 32 insertions, 46 deletions

diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 93caf7944c..b4b82b1edf 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -881,7 +881,7 @@ void EditorNode::_resources_changed(const Vector<String> &p_resources) {
 
 	int rc = p_resources.size();
 	for (int i = 0; i < rc; i++) {
-		Ref<Resource> res(ResourceCache::get(p_resources.get(i)));
+		Ref<Resource> res = ResourceCache::get_ref(p_resources.get(i));
 		if (res.is_null()) {
 			continue;
 		}
@@ -1011,8 +1011,8 @@ void EditorNode::_resources_reimported(const Vector<String> &p_resources) {
 			continue;
 		}
 		// Reload normally.
-		Resource *resource = ResourceCache::get(p_resources[i]);
-		if (resource) {
+		Ref<Resource> resource = ResourceCache::get_ref(p_resources[i]);
+		if (resource.is_valid()) {
 			resource->reload_from_file();
 		}
 	}
@@ -1620,34 +1620,6 @@ bool EditorNode::_validate_scene_recursive(const String &p_filename, Node *p_nod
 	return false;
 }
 
-static bool _find_edited_resources(const Ref<Resource> &p_resource, HashSet<Ref<Resource>> &edited_resources) {
-	if (p_resource->is_edited()) {
-		edited_resources.insert(p_resource);
-		return true;
-	}
-
-	List<PropertyInfo> plist;
-
-	p_resource->get_property_list(&plist);
-
-	for (const PropertyInfo &E : plist) {
-		if (E.type == Variant::OBJECT && E.usage & PROPERTY_USAGE_STORAGE && !(E.usage & PROPERTY_USAGE_RESOURCE_NOT_PERSISTENT)) {
-			Ref<Resource> res = p_resource->get(E.name);
-			if (res.is_null()) {
-				continue;
-			}
-			if (res->get_path().is_resource_file()) { // Not a subresource, continue.
-				continue;
-			}
-			if (_find_edited_resources(res, edited_resources)) {
-				return true;
-			}
-		}
-	}
-
-	return false;
-}
-
 int EditorNode::_save_external_resources() {
 	// Save external resources and its subresources if any was modified.
 
@@ -1657,29 +1629,43 @@ int EditorNode::_save_external_resources() {
 	}
 	flg |= ResourceSaver::FLAG_REPLACE_SUBRESOURCE_PATHS;
 
-	HashSet<Ref<Resource>> edited_subresources;
+	HashSet<String> edited_resources;
 	int saved = 0;
 	List<Ref<Resource>> cached;
 	ResourceCache::get_cached_resources(&cached);
-	for (const Ref<Resource> &res : cached) {
-		if (!res->get_path().is_resource_file()) {
+
+	for (Ref<Resource> res : cached) {
+		if (!res->is_edited()) {
 			continue;
 		}
-		// not only check if this resource is edited, check contained subresources too
-		if (_find_edited_resources(res, edited_subresources)) {
-			ResourceSaver::save(res->get_path(), res, flg);
-			saved++;
-		}
-	}
 
-	// Clear later, because user may have put the same subresource in two different resources,
-	// which will be shared until the next reload.
+		String path = res->get_path();
+		if (path.begins_with("res://")) {
+			int subres_pos = path.find("::");
+			if (subres_pos == -1) {
+				// Actual resource.
+				edited_resources.insert(path);
+			} else {
+				edited_resources.insert(path.substr(0, subres_pos));
+			}
+		}
 
-	for (const Ref<Resource> &E : edited_subresources) {
-		Ref<Resource> res = E;
 		res->set_edited(false);
 	}
 
+	for (const String &E : edited_resources) {
+		Ref<Resource> res = ResourceCache::get_ref(E);
+		if (!res.is_valid()) {
+			continue; // Maybe it was erased in a thread, who knows.
+		}
+		Ref<PackedScene> ps = res;
+		if (ps.is_valid()) {
+			continue; // Do not save PackedScenes, this will mess up the editor.
+		}
+		ResourceSaver::save(res->get_path(), res, flg);
+		saved++;
+	}
+
 	return saved;
 }
 
@@ -1725,7 +1711,7 @@ void EditorNode::_save_scene(String p_file, int idx) {
 		// We must update it, but also let the previous scene state go, as
 		// old version still work for referencing changes in instantiated or inherited scenes.
 
-		sdata = Ref<PackedScene>(Object::cast_to<PackedScene>(ResourceCache::get(p_file)));
+		sdata = ResourceCache::get_ref(p_file);
 		if (sdata.is_valid()) {
 			sdata->recreate_state();
 		} else {
@@ -3717,7 +3703,7 @@ Error EditorNode::load_scene(const String &p_scene, bool p_ignore_broken_deps, b
 
 	if (ResourceCache::has(lpath)) {
 		// Used from somewhere else? No problem! Update state and replace sdata.
-		Ref<PackedScene> ps = Ref<PackedScene>(Object::cast_to<PackedScene>(ResourceCache::get(lpath)));
+		Ref<PackedScene> ps = ResourceCache::get_ref(lpath);
 		if (ps.is_valid()) {
 			ps->replace_state(sdata->get_state());
 			ps->set_last_modified_time(sdata->get_last_modified_time());