Index: openacs-4/packages/evaluation/www/admin/evaluations/grades-sheets.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/evaluation/www/admin/evaluations/grades-sheets.tcl,v
diff -u -r1.11.2.1 -r1.11.2.2
--- openacs-4/packages/evaluation/www/admin/evaluations/grades-sheets.tcl	12 Sep 2015 11:06:04 -0000	1.11.2.1
+++ openacs-4/packages/evaluation/www/admin/evaluations/grades-sheets.tcl	2 Feb 2017 14:18:02 -0000	1.11.2.2
@@ -9,9 +9,9 @@
     @cvs-id $Id$
 
 } -query {
-	{orderby:optional}
+	{orderby:token,optional}
 	task_id:naturalnum,notnull
-	return_url
+	return_url:localurl
 } -validate {
 	grades_sheets {
 		if { ![db_string count_grades_sheets { *SQL* }] } {