fix notifications loading (again) (#845)

* fix notifications loading (again)

* Revert "fix notifications loading (again)"

This reverts commit 226710fabf5175d4f6a2103c6896bcfe37e3230e.

* fix notification loading (this time for really real)

app/src/main/java/com/keylesspalace/tusky/fragment/NotificationsFragment.java

@@ -697,7 +697,7 @@ public class NotificationsFragment extends SFragment implements
                     adapter.removeItemAndNotify(this.notifications.size());
                 }
 
-                if (adapter.getItemCount() > 1) {
+                if (adapter.getItemCount() > 0) {
                     addItems(notifications, fromId);
                 } else {
                     /* If this is the first fetch, also save the id from the "previous" link and