Ticket #21852: 21852.patch

wp-admin/includes/template.php

@@ -1638 +1638 @@
  */
 function get_submit_button( $text = null, $type = 'primary', $name = 'submit', $wrap = true, $other_attributes = null ) {
         if ( ! is_array( $type ) )
-                $type = explode( ' ', $type ); 
+                $type = explode( ' ', $type );
 
         $button_shorthand = array( 'primary', 'tiny', 'small', 'large' );
-        $classes = array( 'button' );
+        $classes = array();
         foreach ( $type as $t ) {
                 if ( 'secondary' === $t || 'button-secondary' === $t )
                         continue;
                 $classes[] = in_array( $t, $button_shorthand ) ? 'button-' . $t : $t;
         }
+        $classes[] = 'button';
         $class = implode( ' ', array_unique( $classes ) );
 
         if ( 'delete' === $type )