template: Load templates in scan mode

This is potentially expensive, but is necessary so that meta and tag
directives, and other links on templates affect the page using the template
reliably.

IkiWiki/Plugin/template.pm

@@ -10,7 +10,8 @@ use Encode;
 
 sub import {
 	hook(type => "getsetup", id => "template", call => \&getsetup);
-	hook(type => "preprocess", id => "template", call => \&preprocess);
+	hook(type => "preprocess", id => "template", call => \&preprocess,
+		scan => 1);
 }
 
 sub getsetup () {

debian/changelog

@@ -1,6 +1,10 @@
 ikiwiki (3.05) UNRELEASED; urgency=low
 
   * debhelper v7.2; rules file minimisation.
+  * template: Load templates in scan mode.
+    This is potentially expensive, but is necessary so that meta and tag
+    directives, and other links on templates affect the page using the
+    template reliably.
 
  -- Joey Hess <joeyh@debian.org>  Sun, 15 Feb 2009 20:11:57 -0500
 

doc/bugs/cannot_reliably_use_meta_in_template.mdwn

@@ -14,3 +14,5 @@ scan pass, every page containing a template will cause the template to be
 loaded and filled out. This can be some serious additional overhead.
 
 --[[Joey]] 
+
+[[done]]

doc/bugs/tags__44___backlinks_and_3.x.mdwn

@@ -30,3 +30,5 @@ time, so went ahead and migrated live, spamming planet debian in the process
 > [[cannot_reliably_use_meta_in_template]]. AFAIK, this has never worked
 > reliably, although the linked page has a simple, though potentially
 > expensive fix. --[[Joey]] 
+
+> fix made, [[done]] --[[Joey]]