really fix diff display to not show both types of diff

12fa9c031f porported to fix this, but failed

IkiWiki/Plugin/recentchanges.pm

@@ -165,6 +165,7 @@ sub store ($$$) {
 	# Limit pages to first 10, and add links to the changed pages.
 	my $is_excess = exists $change->{pages}[10];
 	delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
+	my $has_diffurl=0;
 	$change->{pages} = [
 		map {
 			if (length $config{cgiurl}) {
@@ -180,6 +181,9 @@ sub store ($$$) {
 			else {
 				$_->{link} = pagetitle($_->{page});
 			}
+			if (defined $_->{diffurl}) {
+				$has_diffurl=1;
+			}
 
 			$_;
 		} @{$change->{pages}}
@@ -227,6 +231,8 @@ sub store ($$$) {
 		wikiname => $config{wikiname},
 	);
 	
+	$template->param(has_diffurl => 1) if $has_diffurl;
+
 	$template->param(permalink => urlto($config{recentchangespage})."#change-".titlepage($change->{rev}))
 		if exists $config{url};
 	

debian/changelog

@@ -12,6 +12,9 @@ ikiwiki (3.20120726) UNRELEASED; urgency=low
     To enable this protection, set cgi_overload_delay to the number of
     seconds to wait. This is not enabled by default.
   * Add back a 1em margin between archivepage divs.
+  * recentchangesdiff: Correct broken template that resulted in duplicate
+    diff icons being displayed, and bloated the recentchanges page with
+    inline diffs when the configuration should have not allowed them.
 
  -- Joey Hess <joeyh@debian.org>  Thu, 30 Aug 2012 11:56:12 -0400
 

templates/change.tmpl

@@ -9,9 +9,11 @@
 <div id="change-<TMPL_VAR REV>" class="metadata">
 <span class="desc"><br />Changed pages:</span>
 <span class="pagelinks">
+<TMPL_UNLESS HAS_DIFFURL>
 <TMPL_IF DIFF>
 <a href="#diff-<TMPL_VAR REV>" class="toggle" title="diff" rel="nofollow">[[diff|wikiicons/diff.png]]</a>
 </TMPL_IF>
+</TMPL_UNLESS>
 <TMPL_LOOP PAGES>
 <TMPL_IF DIFFURL><a href="<TMPL_VAR DIFFURL>" title="diff" rel="nofollow">[[diff|wikiicons/diff.png]]</a><TMPL_VAR LINK>
 <TMPL_ELSE><TMPL_VAR LINK></TMPL_IF>
@@ -41,7 +43,7 @@
 </TMPL_IF>
 </TMPL_LOOP>
 </div>
-<TMPL_UNLESS DIFFURL>
+<TMPL_UNLESS HAS_DIFFURL>
 <TMPL_IF DIFF>
 <div class="toggleable" id="diff-<TMPL_VAR REV>">
 <pre>