Checkmk Werk 10715: LDAP: Fix broken sync when a group contains itself

ID: 10715 Title: LDAP: Fix broken sync when a group contains itself Component: Multisite Level: 1 Class: Bug fix Version: 1.7.0i1 The LDAP synchronization was terminating with an exception when it is configured to synchronize nested loops and one of the groups to be synchronized contains itself as member. Loops spanning over multiple layers of groups were already prevented, but not self referencing objects.