Index: openacs-4/packages/dotlrn/lib/member-email-confirm.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn/lib/member-email-confirm.tcl,v
diff -u -N -r1.5 -r1.6
--- openacs-4/packages/dotlrn/lib/member-email-confirm.tcl	1 Nov 2013 21:08:28 -0000	1.5
+++ openacs-4/packages/dotlrn/lib/member-email-confirm.tcl	27 Oct 2014 16:41:14 -0000	1.6
@@ -2,7 +2,7 @@
     Ask admin to confirm email and if so
     let the admin edit the email before sending
 } {
-    user_id
+    user_id:naturalnum,notnull
     {type "on join"}
     {return_url ""}
 }