opengroup messages from blocked user are dropped

Fixes #2019

ts/opengroup/opengroupV2/ApiUtil.ts

@@ -3,6 +3,7 @@ import { FileServerV2Request } from '../../fileserver/FileServerApiV2';
 import { PubKey } from '../../session/types';
 import { allowOnlyOneAtATime } from '../../session/utils/Promise';
 import { updateDefaultRooms, updateDefaultRoomsInProgress } from '../../state/ducks/defaultRooms';
+import { BlockedNumberController } from '../../util';
 import { getCompleteUrlFromRoom } from '../utils/OpenGroupUtils';
 import { parseOpenGroupV2 } from './JoinOpenGroupV2';
 import { getAllRoomInfos } from './OpenGroupAPIV2';
@@ -100,7 +101,11 @@ export const parseMessages = async (
     }
   }
 
-  return _.compact(parsedMessages).sort((a, b) => (a.serverId || 0) - (b.serverId || 0));
+  return _.compact(
+    parsedMessages.map(m =>
+      m && m.sender && !BlockedNumberController.isBlocked(m.sender) ? m : null
+    )
+  ).sort((a, b) => (a.serverId || 0) - (b.serverId || 0));
 };
 // tslint:disable: no-http-string
 const defaultServerUrl = 'http://116.203.70.33';