From 91016fd2379ac3cd6a0517c8331909603e0a0808 Mon Sep 17 00:00:00 2001
From: Rosie Le Faive <lefaive@gmail.com>
Date: Thu, 6 Jul 2023 14:51:23 -0300
Subject: [PATCH] Don't delete files in the thumbnail field.

---
 src/Form/ConfirmDeleteMediaAndFile.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Form/ConfirmDeleteMediaAndFile.php b/src/Form/ConfirmDeleteMediaAndFile.php
index d5dc9750..a9613871 100644
--- a/src/Form/ConfirmDeleteMediaAndFile.php
+++ b/src/Form/ConfirmDeleteMediaAndFile.php
@@ -128,6 +128,9 @@ class ConfirmDeleteMediaAndFile extends DeleteMultipleForm {
       // Check for files.
       $fields = $this->entityFieldManager->getFieldDefinitions('media', $entity->bundle());
       foreach ($fields as $field) {
+        if ($field->getName() == 'thumbnail') {
+          continue;
+        }
         $type = $field->getType();
         if ($type == 'file' || $type == 'image') {
           $target_id = $entity->get($field->getName())->target_id;