Allow empty input in namespaces multiselect on Special:Block

Follow-up to 83ebbb519f

Bug: T219882
Change-Id: I5f3d907a8f8be02f9e2c23d2a66c42752daa38b5

diff --git a/includes/htmlform/fields/HTMLNamespacesMultiselectField.php b/includes/htmlform/fields/HTMLNamespacesMultiselectField.php
index cbcd3ba..860a351 100644 (file)
--- a/includes/htmlform/fields/HTMLNamespacesMultiselectField.php
+++ b/includes/htmlform/fields/HTMLNamespacesMultiselectField.php
@@ -28,7 +28,7 @@ class HTMLNamespacesMultiselectField extends HTMLSelectNamespace {
        }
 
        public function validate( $value, $alldata ) {
-               if ( !$this->mParams['exists'] ) {
+               if ( !$this->mParams['exists'] || $value === '' ) {
                        return true;
                }