Index: openacs-4/packages/xowiki/tcl/xowiki-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-procs.tcl,v
diff -u -r1.542.2.168 -r1.542.2.169
--- openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	24 Dec 2022 16:33:24 -0000	1.542.2.168
+++ openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	29 Dec 2022 12:52:06 -0000	1.542.2.169
@@ -5390,7 +5390,7 @@
     if {$group_id eq ""} {
       # group::new does not flush the cache - sigh!  Therefore, we have
       # to flush the old cache entry here manually.
-      ns_cache flush util_memoize \
+      ::acs::clusterwide ns_cache flush util_memoize \
           "group::get_id_not_cached -group_name $group_name -subsite_id {} -application_group_id {}"
       set group_id [group::new -group_name $group_name]
     }