Ticket #38590: 38590.diff

src/wp-includes/l10n.php

@@ -859 +859 @@
                 );
 
                 foreach ( $locations as $location ) {
-                        foreach ( get_available_languages( $location ) as $file ) {
-                                $cached_mofiles[] = "{$location}/{$file}.mo";
-                        }
+                        $cached_mofiles = array_merge( $cached_mofiles, glob( $location . '/*.mo' ) );
                 }
         }