fix(core): Add disableSubgroups option in SOGoUserSources LDAP settings to avoid infinite recursive loop when using a group name with the same name as a member. Fixes #5913

SoObjects/SOGo/LDAPSource.h

@@ -66,6 +66,8 @@
   BOOL _listRequiresDot;
   int _globalAddressBookFirstEntriesCount;
 
+  BOOL _disableSubgroups;
+
   NSString *_domain;
   NSString *_contactInfoAttribute;
   BOOL _groupExpansionEnabled;