Fix PayPal Express on events

diff --git a/CRM/Core/Form.php b/CRM/Core/Form.php
index c8b1d2b8add96551a709eab91622fad5c1c6c36a..17145046054453ef8c3b657edc52b6f6fc9213c2 100644 (file)
--- a/CRM/Core/Form.php
+++ b/CRM/Core/Form.php
@@ -929,7 +929,7 @@ class CRM_Core_Form extends HTML_QuickForm_Page {
   protected function handlePreApproval(&$params) {
     try {
       $payment = Civi\Payment\System::singleton()->getByProcessor($this->_paymentProcessor);
-      $params['component'] = 'contribute';
+      $params['component'] = $params['component'] ?? 'contribute';
       $result = $payment->doPreApproval($params);
       if (empty($result)) {
         // This could happen, for example, when paypal looks at the button value & decides it is not paypal express.