Index: openacs-4/packages/chat/www/chat.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/chat.tcl,v
diff -u -r1.20.2.8 -r1.20.2.9
--- openacs-4/packages/chat/www/chat.tcl	29 Mar 2023 15:15:14 -0000	1.20.2.8
+++ openacs-4/packages/chat/www/chat.tcl	17 May 2023 09:09:21 -0000	1.20.2.9
@@ -7,7 +7,7 @@
     @creation-date November 22, 2000
     @cvs-id $Id$
 } {
-    room_id:object_type(chat_room)
+    room_id:object_type(chat_room),notnull
 } -properties {
     context:onevalue
     room_id:onevalue