message: Ensure ellipsis is added when replying to cached events
diff: @@ -1247,7 +1247,6 @@ export class MatrixHandler {
  else {
  rplSource = eventContent.content.body;
  }
  - rplSource = rplSource.substring(0, REPLY_SOURCE_MAX_LENGTH);
  cachedEvent = {sender: rplName, body: rplSource, timestamp: eventContent.origin_server_ts};
  this.cacheEvent(eventId, cachedEvent);
  }
  