Index: openacs-4/packages/acs-authentication/tcl/sync-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-authentication/tcl/sync-procs.tcl,v
diff -u -N -r1.41 -r1.42
--- openacs-4/packages/acs-authentication/tcl/sync-procs.tcl	25 Apr 2018 19:23:25 -0000	1.41
+++ openacs-4/packages/acs-authentication/tcl/sync-procs.tcl	9 May 2018 15:33:28 -0000	1.42
@@ -547,7 +547,7 @@
     # TODO: using a different error-code could make the code saver, by
     # just ingnoring such cases.
     #
-    set elms {}
+    set elms [list]
     ad_try  {
         set elms [auth::sync::GetElements -authority_id $authority_id]
     } on error {errorMsg dict} {