🐛 Add missing code

Author: artemkrachulov

MatrixSDK/Data/Store/MXMemoryStore/MXMemoryStore.m

@@ -51,7 +51,7 @@ - (instancetype)init
         roomOutgoingMessagesStores = [NSMutableDictionary dictionary];
         roomThreadedReceiptsStores = [NSMutableDictionary dictionary];
         users = [NSMutableDictionary dictionary];
-//        locations = [NSMutableDictionary dictionary];
+        locations = [NSMutableDictionary dictionary];
         groups = [NSMutableDictionary dictionary];
         roomUnreaded = [[NSMutableSet alloc] init];
         roomSummaryStore = [[MXMemoryRoomSummaryStore alloc] init];

MatrixSDK/MXSession.m

@@ -774,6 +774,9 @@ - (void)handleSyncResponse:(MXSyncResponse *)syncResponse
         {
             [self handlePresenceEvent:presenceEvent direction:MXTimelineDirectionForwards];
         }
+      
+        // Handle multiroom
+        [self handleMultiroom: syncResponse.multiroom];
 
         // Sync point: wait that all rooms in the /sync response have been loaded
         // and their /sync response has been processed
@@ -1862,6 +1865,11 @@ - (void)handlePresenceEvent:(MXEvent *)event direction:(MXTimelineDirection)dire
     [self notifyListeners:event direction:direction];
 }
 
+- (void)handleMultiroom:(NSDictionary<NSString*, MXMultiroomSync*> *)multiroom
+{
+  [self.store storeLocations: multiroom];
+}
+
 - (void)handleAccountData:(NSDictionary*)accountDataUpdate
 {
     if (accountDataUpdate && accountDataUpdate[@"events"] && ((NSArray*)accountDataUpdate[@"events"]).count)