Merge branch 'feature/0427-school' into master_saas

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ImGroupServiceImpl.java

@@ -506,6 +506,7 @@ public class ImGroupServiceImpl extends BaseServiceImpl<String, ImGroup> impleme
             log.error("添加群成员失败{}", imGroup.getId(), e);
         }
         imGroupMemberDao.batchInsert(imGroupMemberList);
+        updateImGroupUserNumber(imGroup.getId());
     }