Index: openacs-4/packages/general-comments/www/comment-add-3.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/general-comments/www/comment-add-3.tcl,v
diff -u -r1.9.8.2 -r1.9.8.3
--- openacs-4/packages/general-comments/www/comment-add-3.tcl	6 Sep 2013 17:37:19 -0000	1.9.8.2
+++ openacs-4/packages/general-comments/www/comment-add-3.tcl	3 Oct 2013 08:41:29 -0000	1.9.8.3
@@ -47,7 +47,7 @@
     -category $category \
     -content $content
 
-if { [string equal $attach_p "f"] && ![empty_string_p $return_url] } {
+if { $attach_p eq "f" && $return_url ne "" } {
     ad_returnredirect $return_url
 } else {
     ad_returnredirect "view-comment?[export_vars { comment_id return_url }]"