Index: openacs-4/packages/acs-subsite/www/pvt/alerts.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/pvt/alerts.tcl,v
diff -u -r1.9.2.2 -r1.9.2.3
--- openacs-4/packages/acs-subsite/www/pvt/alerts.tcl	3 Jul 2020 07:43:20 -0000	1.9.2.2
+++ openacs-4/packages/acs-subsite/www/pvt/alerts.tcl	5 Sep 2022 15:07:19 -0000	1.9.2.3
@@ -20,7 +20,7 @@
 set email       [dict get $user_info email]
 set url         [dict get $user_info url]
 set full_name   [dict get $user_info name]
-if { [string trim $full_name] eq "" } {
+if { [string is space $full_name] } {
     set full_name "name unknown"
 }