From 687559871b8cbf45336dedc68172fc1e8f28ecc1 Mon Sep 17 00:00:00 2001
From: David Woloszyn <david.woloszyn@moodle.com>
Date: Fri, 15 Aug 2025 12:32:17 +1000
Subject: [PATCH] MDL-86315 registration: Unset emails in hub when dependant
 value not set

---
 lib/classes/hub/site_registration_form.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/classes/hub/site_registration_form.php b/lib/classes/hub/site_registration_form.php
index e8b667e79b6..65a455ff4fd 100644
--- a/lib/classes/hub/site_registration_form.php
+++ b/lib/classes/hub/site_registration_form.php
@@ -293,11 +293,11 @@ class site_registration_form extends \moodleform {
         if ($data = parent::get_data()) {
             // Never return '*newemail' checkboxes, always return 'emailalertemail' and 'commnewsemail' even if not applicable.
             if (empty($data->emailalert) || empty($data->emailalertnewemail)) {
-                $data->emailalertemail = null;
+                $data->emailalertemail = '';
             }
             unset($data->emailalertnewemail);
             if (empty($data->commnews) || empty($data->commnewsnewemail)) {
-                $data->commnewsemail = null;
+                $data->commnewsemail = '';
             }
             unset($data->commnewsnewemail);
             // Always return 'contactable'.