Fix some issue

lib/providers/cycles.dart

@@ -110,10 +110,11 @@ class CyclesProvider extends ChangeNotifier {
       result.add(label['id'].toString());
       // print(hospital['name']);
     }
+    if (result.isEmpty) result.add("");
     labelVals = result;
     initialLabelValue = labelVals[0];
     TextEditingController newLbl = new TextEditingController();
-    newLbl.text = initialLabelValue;
+    newLbl.text = "";
     labelValues.add(newLbl);
     notifyListeners();
     return result;