@@ -, +, @@ 
---
 .../modules/univention/connector/__init__.py                       | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
--- a/services/univention-ad-connector/modules/univention/connector/__init__.py	
+++ a/services/univention-ad-connector/modules/univention/connector/__init__.py	
@@ -1191,7 +1191,12 @@ class ucs:
 		else:
 			ucs_object = univention.admin.objects.get(module, None, self.lo, dn=object['dn'], position='')
 		self.__set_values(property_type, object, ucs_object)
-		return ucs_object.modify() and self.__modify_custom_attributes(property_type, object, ucs_object, module, position)
+		modified_dn = ucs_object.modify()
+		if modified_dn:
+			object['dn'] = modified_dn
+			return self.__modify_custom_attributes(property_type, object,
+				ucs_object, module, position)
+		return False
 
 	def move_in_ucs(self, property_type, object, module, position):
 		_d = ud.function('ldap.move_in_ucs')
-- 
---
 test/ucs-test/tests/55_adconnector/172sync_ad_change_groupname | 5 -----
 1 file changed, 5 deletions(-)
--- a/test/ucs-test/tests/55_adconnector/172sync_ad_change_groupname	
+++ a/test/ucs-test/tests/55_adconnector/172sync_ad_change_groupname	
@@ -3,17 +3,12 @@ 
 ## exposure: dangerous
 ## packages:
 ## - univention-ad-connector
-## versions:
-##  3.0-0: skip
 ## bugs:
 ##  - 18479
 ## tags:
 ##  - groupsync
 ##  - skip_admember
 
-# skip test, see https://forge.univention.org/bugzilla/show_bug.cgi?id=28696
-exit 131
-
 . "$TESTLIBPATH/base.sh" || exit 137
 . "$TESTLIBPATH/udm.sh" || exit 137
 . "$TESTLIBPATH/random.sh" || exit 137 
--