Index: openacs-4/packages/acs-authentication/tcl/authentication-procs-naviserver.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-authentication/tcl/authentication-procs-naviserver.tcl,v
diff -u -N -r1.2 -r1.3
--- openacs-4/packages/acs-authentication/tcl/authentication-procs-naviserver.tcl	25 Apr 2018 19:23:25 -0000	1.2
+++ openacs-4/packages/acs-authentication/tcl/authentication-procs-naviserver.tcl	9 May 2018 15:33:28 -0000	1.3
@@ -63,7 +63,7 @@
     @return list {key number_of_attempts timeout ... }
 } {
 
-    set result {}
+    set result [list]
     set keys [ns_cache_keys ns:memoize]
     set contents [lindex [ns_cache_stats -contents -- ns:memoize] 0]