From e65ad14d7c4475287dbe19b9444e1a2b27d5ac50 Mon Sep 17 00:00:00 2001
From: Arthur Perton <arthur@webenapp.nl>
Date: Thu, 24 Jun 2021 16:08:33 +0200
Subject: [PATCH] Delete trees when setting a collection to not orderable

---
 src/Http/Controllers/CP/Collections/CollectionsController.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Http/Controllers/CP/Collections/CollectionsController.php b/src/Http/Controllers/CP/Collections/CollectionsController.php
index c77ed98e88..90f8313685 100644
--- a/src/Http/Controllers/CP/Collections/CollectionsController.php
+++ b/src/Http/Controllers/CP/Collections/CollectionsController.php
@@ -223,6 +223,9 @@ public function update(Request $request, $collection)
         }
 
         if (! $values['structured']) {
+            if ($structure = $collection->structure()) {
+                $structure->trees()->each->delete();
+            }
             $collection->structure(null);
         } else {
             $collection->structure($this->makeStructure($collection, $values['max_depth'], $values['expects_root'], $values['sites'] ?? null));