Ticket #22543: 22543-2.diff

wp-includes/class-wp-image-editor-imagick.php

@@ -38 +38 @@
          * @return boolean
          */
         public static function test( $args = array() ) {
-                if ( ! extension_loaded( 'imagick' ) || ! is_callable( 'Imagick', 'queryFormats' ) )
+                if ( ! extension_loaded( 'imagick' ) || ! is_callable( 'Imagick', 'queryFormats' ) || ! is_callable( $this->image, 'setIteratorIndex' ) )
                         return false;
 
                 return true;