Index: openacs-4/packages/bug-tracker/www/bug.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/bug-tracker/www/bug.tcl,v
diff -u -r1.56 -r1.57
--- openacs-4/packages/bug-tracker/www/bug.tcl	26 Apr 2018 08:56:37 -0000	1.56
+++ openacs-4/packages/bug-tracker/www/bug.tcl	9 May 2018 15:33:29 -0000	1.57
@@ -98,7 +98,7 @@
 ns_log Notice "actions: enabled_action_id: '${enabled_action_id}'"
 
 # Buttons
-set actions {}
+set actions [list]
 if { $enabled_action_id eq "" } {
 
     #ns_log Notice "actions: case_id: $case_id"
@@ -232,7 +232,7 @@
 }
 
 # TODO: Export filters
-set filters {}
+set filters [list]
 foreach name [bug_tracker::get_export_variables] { 
     if { [info exists $name] } {
         lappend filters [list "${name}:text(hidden),optional" [list value [set $name]]]
@@ -258,7 +258,7 @@
 # on_submit block
 ad_form -extend -name bug -on_submit {
 
-    array set row {} 
+    array set row [list] 
     
     if { $enabled_action_id ne "" } { 
         foreach field [workflow::action::get_element -action_id $action_id -element edit_fields] {