From c3e6a227d04d5fc7b9d7fe83760ac5c4dffca227 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Ausw=C3=B6ger?= <martin@auswoeger.com>
Date: Wed, 9 Sep 2020 15:14:35 +0200
Subject: [PATCH] Keep fileTree sorting order when changing selection (see
 #2267)

Description
-----------

| Q                | A
| -----------------| ---
| Fixed issues     | Fixes #2266

Commits
-------

b63977f2 Keep fileTree sorting order when changing selection
---
 core-bundle/src/Resources/contao/classes/Ajax.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core-bundle/src/Resources/contao/classes/Ajax.php b/core-bundle/src/Resources/contao/classes/Ajax.php
index 4ad03905e0d..51f2bbd0442 100644
--- a/core-bundle/src/Resources/contao/classes/Ajax.php
+++ b/core-bundle/src/Resources/contao/classes/Ajax.php
@@ -376,6 +376,9 @@ public function executePostActions(DataContainer $dc)
 						}
 					}
 
+					// Keep the previous sorting order when reloading the widget
+					$varValue = ArrayUtil::sortByOrderField($varValue, $dc->activeRecord->$strField);
+
 					$varValue = serialize($varValue);
 				}