avoid loading twice after dbltap

Author: odeimaiz

services/static-webserver/client/source/class/osparc/file/FilesTree.js

@@ -244,6 +244,7 @@ qx.Class.define("osparc.file.FilesTree", {
         configureItem: item => {
           item.addListener("changeOpen", e => {
             if (e.getData() && !item.getLoaded()) {
+              item.setLoaded(true);
               const locationId = item.getLocation();
               const path = item.getPath();
               this.requestPathItems(locationId, path);

services/static-webserver/client/source/class/osparc/file/TreeFolderView.js

@@ -102,6 +102,7 @@ qx.Class.define("osparc.file.TreeFolderView", {
         const selectedModel = folderTree.getSelectedItem();
         if (selectedModel) {
           if (selectedModel.getPath() && !selectedModel.getLoaded()) {
+            selectedModel.setLoaded(true);
             folderTree.requestPathItems(selectedModel.getLocation(), selectedModel.getPath())
               .then(pathModel => {
                 if (osparc.file.FilesTree.isDir(pathModel)) {
@@ -118,6 +119,7 @@ qx.Class.define("osparc.file.TreeFolderView", {
         const selectedModel = e.getData();
         if (selectedModel) {
           if (selectedModel.getPath() && !selectedModel.getLoaded()) {
+            selectedModel.setLoaded(true);
             folderTree.requestPathItems(selectedModel.getLocation(), selectedModel.getPath())
               .then(pathModel => {
                 folderTree.openNodeAndParents(pathModel);