Index: openacs-4/packages/acs-subsite/tcl/group-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/tcl/group-procs.tcl,v
diff -u -r1.55 -r1.56
--- openacs-4/packages/acs-subsite/tcl/group-procs.tcl	15 Sep 2018 17:22:32 -0000	1.55
+++ openacs-4/packages/acs-subsite/tcl/group-procs.tcl	28 Sep 2018 18:52:25 -0000	1.56
@@ -460,7 +460,7 @@
             where object_id = :group_id
         }
     }
-    acs::group_cache flush info-$group_id-
+    acs::group_cache flush -partition_key $group_id info-$group_id-
 }
 
 ad_proc -public group::possible_member_states {} {