For a limited rights user, adminhandler needs the content_type handler var set.
--- trunk/htdocs/system/classes/post.php 2009-12-12 03:05:52 UTC (rev 3877)
+++ trunk/htdocs/system/classes/post.php 2009-12-13 00:36:09 UTC (rev 3878)
@@ -827,6 +827,7 @@
// Add required hidden controls
$form->append('hidden', 'content_type', 'null:null');
+ $form->content_type->id = 'content_type';
$form->content_type->value = $this->content_type;
$form->append('hidden', 'post_id', 'null:null');
$form->post_id->id = 'id';