Ticket #17668: link-template.diff

link-template.php

@@ -911 +911 @@
         if ( !$post_type_object )
                 return;
 
-        if ( !current_user_can( $post_type_object->cap->edit_post, $post->ID ) )
+        if ( $post_type_object->name == 'revision' ) {
+                $post_cap_id = $post->post_parent;
+        }
+        else {
+                $post_cap_id = $post->ID;
+        }
+        if ( !current_user_can( $post_type_object->cap->edit_post, $post_cap_id ) )
                 return;
 
         return apply_filters( 'get_edit_post_link', admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), $post->ID, $context );