--- a/wp/wp-includes/customize/class-wp-customize-nav-menu-location-control.php	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-includes/customize/class-wp-customize-nav-menu-location-control.php	Tue Dec 15 13:49:49 2020 +0100
@@ -57,7 +57,8 @@
 			return;
 		}
 
-		$value_hidden_class = $no_value_hidden_class = '';
+		$value_hidden_class    = '';
+		$no_value_hidden_class = '';
 		if ( $this->value() ) {
 			$value_hidden_class = ' hidden';
 		} else {