Stop game on reloading project

(cherry picked from commit 8935cf17cf674b0cb027e5c82a21a64d3a43feb1)

editor/editor_node.cpp

@@ -1607,6 +1607,10 @@ void EditorNode::save_scene_list(Vector<String> p_scene_filenames) {
 void EditorNode::restart_editor() {
 	exiting = true;
 
+	if (editor_run.get_status() != EditorRun::STATUS_STOP) {
+		editor_run.stop();
+	}
+
 	String to_reopen;
 	if (get_tree()->get_edited_scene_root()) {
 		to_reopen = get_tree()->get_edited_scene_root()->get_filename();