Ticket #19600: 19600.patch

wp-includes/locale.php

@@ -333 +333 @@
          * @return bool Whether locale is RTL.
          */
          function is_rtl() {
-                return 'rtl' == $this->text_direction;
+                $rtl_locales = array( 'ar', 'ckb', 'fa_IR', 'he_IL', 'ug_CN' );
+                return in_array( get_locale(), $rtl_locales ) || 'rtl' == $this->text_direction;
          }
 }