Don't show private attachment taxonomies in the uploader. see #14746

git-svn-id: https://develop.svn.wordpress.org/trunk@16057 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/includes/media.php

@@ -1030,6 +1030,8 @@ function get_attachment_fields_to_edit($post, $errors = null) {
 
 	foreach ( get_attachment_taxonomies($post) as $taxonomy ) {
 		$t = (array) get_taxonomy($taxonomy);
+		if ( ! $t['public'] )
+			continue;
 		if ( empty($t['label']) )
 			$t['label'] = $taxonomy;
 		if ( empty($t['args']) )