Do requested checkin fixes for bug 509108.

process_bug.cgi

@@ -198,17 +198,15 @@ else {
 
 $vars->{'title_tag'} = "bug_processed";
 
-# Set up the vars for navigational <link> elements
-my @bug_list;
-if ($cgi->cookie("BUGLIST")) {
-    @bug_list = split(/:/, $cgi->cookie("BUGLIST"));
-}
-
 my ($action, $next_bug);
 if (defined $cgi->param('id')) {
     $action = Bugzilla->user->settings->{'post_bug_submit_action'}->{'value'};
 
     if ($action eq 'next_bug') {
+        my @bug_list;
+        if ($cgi->cookie("BUGLIST")) {
+            @bug_list = split(/:/, $cgi->cookie("BUGLIST"));
+        }
         my $cur = lsearch(\@bug_list, $cgi->param('id'));
         if ($cur >= 0 && $cur < $#bug_list) {
             $next_bug = $bug_list[$cur + 1];

template/en/default/bug/navigate.html.tmpl

@@ -43,10 +43,12 @@
     ([% this_bug_idx + 1 %] of [% last_bug_list.size %])
   [% END %]
 
-[% IF this_bug_idx != -1 %]
-  <a href="show_bug.cgi?id=[% last_bug_list.first FILTER url_quote %]">First</a>
-  <a href="show_bug.cgi?id=[% last_bug_list.last FILTER url_quote %]">Last</a>
-[% END %]
+  [% IF this_bug_idx != -1 %]
+    <a href="show_bug.cgi?id=
+             [%- last_bug_list.first FILTER url_quote %]">First</a>
+    <a href="show_bug.cgi?id=
+             [%- last_bug_list.last FILTER url_quote %]">Last</a>
+  [% END %]
 
   [% IF bug.bug_id %]
     [% IF this_bug_idx != -1 %]