new Attachments(instance,post_id) fails

Hi,

Using latest version with wp3.5 to get attachments from post other than the current fails because:

global $post;
            if( is_null( $post_id ) && is_object( $post ) && isset( $post->ID ) )
            {
                $post_id = $post->ID;
            }
            elseif( isset( $_GET['post'] ) )
            {
                $post_id = intval( $_GET['post'] );
            }
            else
            {
                // no post ID, nothing to do...
                return;
            }

If post_id is set then this logic causes get_attachments to return as though no post id was set.

Changed to

global $post;
            if( is_null( $post_id ) && is_object( $post ) && isset( $post->ID ) )
            {
                $post_id = $post->ID;
            }
            elseif( isset( $_GET['post'] ) )
            {
                $post_id = intval( $_GET['post'] );
            }
            elseif (!isset($post_id))
            {
                // no post ID, nothing to do...
                return;
            }

Works great (for me anyway, haven’t done extensive testing….!)

http://wordpress.org/extend/plugins/attachments/