From 8da9f83cde9976d5acb5155a03fcd7b0b6f0848b Mon Sep 17 00:00:00 2001
From: Roman Schmid <bummzack@gmail.com>
Date: Tue, 26 Jul 2022 10:47:13 +0200
Subject: [PATCH] fix: Fall back to the `ID` if no title is given

---
 src/TagField.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/TagField.php b/src/TagField.php
index 80df94e..f280634 100644
--- a/src/TagField.php
+++ b/src/TagField.php
@@ -403,7 +403,7 @@ class TagField extends MultiSelectField
         }
 
         if ($values instanceof DataObject && $values->exists()) {
-            return [$values->{$this->getTitleField()}];
+            return [$values->{$this->getTitleField()} ?? $values->ID];
         }
 
         if (is_int($values)) {