Index: openacs-4/packages/assessment/www/last-session.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/assessment/www/last-session.tcl,v
diff -u -r1.5 -r1.5.2.1
--- openacs-4/packages/assessment/www/last-session.tcl	29 Sep 2013 13:40:40 -0000	1.5
+++ openacs-4/packages/assessment/www/last-session.tcl	18 Aug 2014 20:25:03 -0000	1.5.2.1
@@ -18,7 +18,7 @@
 
 set package_id [ad_conn package_id]
 
-if {[empty_string_p $subject_id]} {
+if {$subject_id eq ""} {
     set subject_id [ad_conn user_id]
 }