Fix regression in anonymous user detection

src/reducers/login.js

@@ -5,6 +5,7 @@ import {
   LOG_IN,
   LOG_OUT,
 } from '../constants/actionTypes';
+import ICAT from '../config/icat';
 
 const initialState = {
   username: null,
@@ -42,7 +43,9 @@ const user = (state = initialState, action) => {
           .format(),
         name: action.name,
         fullName: action.fullName,
-        isAnonymous: action.fullName === 'Anonymous',
+        isAnonymous:
+          ICAT.authentication.anonymous.enabled &&
+          state.username === ICAT.authentication.anonymous.username,
         isAdministrator: action.isAdministrator,
       };
       break;