--- a/doc/doc-common	
+++ a/doc/doc-common	
@@ -1, +1, @@ 
-Subproject commit 5dc4ea65f95535aa2b6986463cad9e90d158244c
+Subproject commit fd6157e48088bb3b1ad20ab3f221b65bec9ed735
--- a/management/python-notifier/python-notifier	
+++ a/management/python-notifier/python-notifier	
@@ -1, +1, @@ 
-Subproject commit 5795ab564093bd83bcee204cbf8c6c36044d8cea
+Subproject commit c3978e370400446624733098e690046e6755ae6b
--- a/services/univention-ad-connector/modules/univention/connector/__init__.py	
+++ a/services/univention-ad-connector/modules/univention/connector/__init__.py	
@@ -1423,7 +1423,7 @@ class ucs:
 					retlist.append(l.lower())
 				return retlist
 			else:
-				return elements
+				return elements.lower()
 
 		def dict_lower(dict):
 			if isinstance(dict, type({})):