Index: openacs-4/packages/chat/www/search-2.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/search-2.tcl,v
diff -u -r1.7 -r1.8
--- openacs-4/packages/chat/www/search-2.tcl	20 Jun 2016 08:37:04 -0000	1.7
+++ openacs-4/packages/chat/www/search-2.tcl	15 Jun 2018 22:47:45 -0000	1.8
@@ -35,14 +35,12 @@
     }
 } else {
     # from one of the user pages
-    if { (![info exists email] || $email eq "") && \
-            (![info exists last_name] || $last_name eq "") } {
+    if { $email eq "" && $last_name eq "" } {
         incr exception_count
         append exception_text "<li>You must specify either an email address or last name to search for.\n"
     }
 
-    if { [info exists email] && [info exists last_name] && \
-            $email ne "" && $last_name ne "" } {
+    if { $email ne "" && $last_name ne "" } {
         incr exception_count
         append exception_text "<li>You can only specify either email or last name, not both.\n"
     }