From af69293c10a0b80857fca4e1f2e835e76a3a3573 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Wed, 25 Aug 2021 13:21:07 +0200
Subject: [PATCH] Return explicit `null` in UserFormField::getSaveValue()

---
 .../lib/system/form/builder/field/user/UserFormField.class.php  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/system/form/builder/field/user/UserFormField.class.php b/wcfsetup/install/files/lib/system/form/builder/field/user/UserFormField.class.php
index 973807601c..4b365da45f 100644
--- a/wcfsetup/install/files/lib/system/form/builder/field/user/UserFormField.class.php
+++ b/wcfsetup/install/files/lib/system/form/builder/field/user/UserFormField.class.php
@@ -74,7 +74,7 @@ class UserFormField extends AbstractFormField implements
     {
         if (empty($this->getUsers())) {
             if ($this->isNullable()) {
-                return;
+                return null;
             }
 
             return 0;
-- 
2.20.1