Index: openacs-4/packages/dbm/www/addforeignkey2.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dbm/www/addforeignkey2.tcl,v
diff -u -r1.2 -r1.3
--- openacs-4/packages/dbm/www/addforeignkey2.tcl	25 Apr 2018 19:47:47 -0000	1.2
+++ openacs-4/packages/dbm/www/addforeignkey2.tcl	9 May 2018 15:33:30 -0000	1.3
@@ -53,8 +53,8 @@
     
 } -on_submit {
 
-    set output {}
-    set output2 {}
+    set output [list]
+    set output2 [list]
 
     foreach el $column {
 	lappend output [concat \"$el\"]