HTMLFormFieldWithButton: Don't pass empty string as 'id'

[lhc/web/wiklou.git] / includes / htmlform / fields / HTMLFormFieldWithButton.php

diff --git a/includes/htmlform/fields/HTMLFormFieldWithButton.php b/includes/htmlform/fields/HTMLFormFieldWithButton.php
index 93f5363..be8f7d8 100644 (file)
--- a/includes/htmlform/fields/HTMLFormFieldWithButton.php
+++ b/includes/htmlform/fields/HTMLFormFieldWithButton.php
@@ -59,7 +59,7 @@ class HTMLFormFieldWithButton extends HTMLFormField {
                        'type' => $this->mButtonType,
                        'label' => $this->mButtonValue,
                        'flags' => $this->mButtonFlags,
-                       'id' => $this->mButtonId,
+                       'id' => $this->mButtonId ?: null,
                ] + OOUI\Element::configFromHtmlAttributes(
                        $this->getAttributes( [ 'disabled', 'tabindex' ] )
                ) );