fix: test

src/utils/jensen.js

@@ -690,7 +690,7 @@ Jensen.prototype.listFiles = async function () {
     if (jensen[tag] == null)
     {
       console.trace('no tag for: ' + tag);
-      return '';
+      return 'x';
     }
     jensen[tag].push(msg.body);
     let data = [];