"oc adm groups sync" is not working as expected if multiple groups point to same LDAP group

Issue

• When using the oc adm groups sync --type=openshift --sync-config=/config/group_sync.yaml --confirm command to sync LDAP groups, this works as expected when each group to be synced points to a unique openshift.io/ldap.uid. However, as soon as there is a second group that points to the same ldap.uid, only the newly created group gets synced.