Ticket #50344: 50344.diff

src/wp-includes/category.php

@@ -283 +283 @@
  * @see get_terms() For list of arguments to pass.
  *
  * @param string|array $args Tag arguments to use when retrieving tags.
- * @return WP_Term[]|int $tags Array of 'post_tag' term objects, or a count thereof.
+ * @return WP_Term[]|int|WP_Error $tags Array of 'post_tag' term objects, a count thereof, or WP_Error if any
+ *                                      explicitly specified taxonomies do not exist.
  */
 function get_tags( $args = '' ) {
         $defaults = array( 'taxonomy' => 'post_tag' );