diff -ru bugzilla.org/Bugzilla/Template.pm bugzilla/Bugzilla/Template.pm
--- bugzilla.org/Bugzilla/Template.pm	2009-12-03 00:33:08.000000000 +0100
+++ bugzilla/Bugzilla/Template.pm	2010-02-23 12:40:15.657992580 +0100
@@ -284,6 +284,11 @@
                               "<a href=\"$current_bugurl#c$4\">$1</a>")
               ~egox;
 
+    my $issue_re = qr/\Qissue\E\s*\#?\s*(\d+)/i;
+    $text =~ s~\b($issue_re)
+              ~ get_bug_link($2,$1)
+              ~egmx;
+
     # Old duplicate markers. These don't use $bug_word because they are old
     # and were never customizable.
     $text =~ s~(?<=^\*\*\*\ This\ bug\ has\ been\ marked\ as\ a\ duplicate\ of\ )
@@ -292,6 +297,12 @@
               ~get_bug_link($1, $1)
               ~egmx;
 
+    $text =~ s~(?<=^\*\*\*\ This\ issue\ has\ been\ marked\ as\ a\ duplicate\ of\ )
+               (\d+)
+               (?=\ \*\*\*\Z)
+              ~get_bug_link($1, $1)
+              ~egmx;
+
     # Now remove the encoding hacks
     $text =~ s/\0\0(\d+)\0\0/$things[$1]/eg;
     $text =~ s/$chr1\0/\0/g;
Only in bugzilla/Bugzilla: Template.pm.orig