retaining the old data.

lib/features/my_appointments/my_appointments_view_model.dart

@@ -375,10 +375,10 @@ class MyAppointmentsViewModel extends ChangeNotifier {
   }
 
   Future<void> getRegionMappedProjectList() async {
-    // if(hospitalList != null && hospitalList!.registeredDoctorMap != null && hospitalList!.registeredDoctorMap!.isNotEmpty){
-    //   filteredHospitalList = hospitalList;
-    //   return;
-    // }
+    if(hospitalList != null && hospitalList!.registeredDoctorMap != null && hospitalList!.registeredDoctorMap!.isNotEmpty){
+      filteredHospitalList = hospitalList;
+      return;
+    }
     isRegionListLoading = true;
     notifyListeners();
     final result = await myAppointmentsRepo.getProjectList();