Ticket #35658: 35658.20.3.diff

src/wp-includes/meta.php

@@ -1030 +1030 @@
                 'show_in_rest'      => false,
         );
 
+        if ( ! is_array( $args ) ) {
+                $args = array();
+        }
+
         $passed_args = array_slice( func_get_args(), 2 );
 
         // There used to be individual args for sanitize and auth callbacks