fix comment permalink to always point to comment parent page

IkiWiki/Plugin/comments.pm

@@ -194,7 +194,7 @@ sub preprocess {
 	}
 
 	if ($params{page} =~ m/\/(\Q$config{comments_pagename}\E\d+)$/) {
-		$pagestate{$page}{meta}{permalink} = urlto($params{destpage}, undef, 1).
+		$pagestate{$page}{meta}{permalink} = urlto(IkiWiki::dirname($params{page}), undef, 1).
 			"#".$params{page};
 	}
 

doc/todo/comments.mdwn

@@ -53,9 +53,7 @@ Known issues with the [[plugins/comments]] plugin:
   (BTW, the rss feed in this situation seems ok; there the link element
   points back to the parent page.
 
-  > done
-  > Er, no, I added a link but it does not go back to the parent page of a
-  > comment if the comment is inlined elsewhere. --[[Joey]] 
+  > done --[[Joey]] 
 
 * It would be useful to have a pagespec that always matches all comments on 
   pages matching a glob. Something like `comment(blog/*)`.