[RN] Fix legacy recent-list storage

react/features/recent-list/constants.js

  * @type {number}
  */
 export const LIST_SIZE = 30;
-
-/**
- * The name of the {@code window.localStorage} item where recent rooms are
- * stored.
- *
- * @type {string}
- */
-export const RECENT_URL_STORAGE = 'recentURLs';

react/features/recent-list/functions.js

 import { i18next } from '../base/i18n';
 import { parseURIString } from '../base/util';
 
+const logger = require('jitsi-meet-logger').getLogger(__filename);
+
+/**
+ * The name of the {@code window.localStorage} item where recent rooms are
+ * stored.
+ *
+ * @type {string}
+ */
+const RECENT_URL_STORAGE = 'recentURLs';
+
+/**
+ * Retrieves the recent room list that was stored using the legacy way.
+ *
+ * @returns {Array<Object>}
+ */
+export function getLegacyRecentRoomList(): Array<Object> {
+    const legacyListString = window.localStorage.getItem(RECENT_URL_STORAGE);
+
+    try {
+        const legacyList = JSON.parse(legacyListString);
+
+        if (legacyList && legacyList.length) {
+            return legacyList;
+        }
+    } catch (error) {
+        logger.warn('Unable to parse legacy recent list');
+    }
+
+    return [];
+}
+
 /**
  * Retrieves the recent room list and generates all the data needed to be
  * displayed.

react/features/recent-list/reducer.js

     UPDATE_CONFERENCE_DURATION
 } from './actionTypes';
 import { LIST_SIZE } from './constants';
-
-/**
- * The initial state of this feature.
- */
-const DEFAULT_STATE = {
-    list: []
-};
+import { getLegacyRecentRoomList } from './functions';
 
 /**
  * The Redux subtree of this feature.
 /**
  * Reduces the Redux actions of the feature features/recent-list.
  */
-ReducerRegistry.register(STORE_NAME, (state = DEFAULT_STATE, action) => {
+ReducerRegistry.register(STORE_NAME, (state = {
+    list: getLegacyRecentRoomList()
+}, action) => {
     switch (action.type) {
     case STORE_CURRENT_CONFERENCE:
         return _storeCurrentConference(state, action);