Fixed issue in get  User tag content count

UserSummary userSummary = this.getUserRepository().getSummaryByUid(user.getPartyUid());
 			if (userSummary.getGooruUid() == null) {
 					userSummary.setGooruUid(user.getPartyUid());
 			}

the above snippet have possibility  of throwing null pointer exception