From bd25e7d17dfb5942cab4a86624163532944c48af Mon Sep 17 00:00:00 2001
From: Thierry Bugier <tbugier@teclib.com>
Date: Fri, 23 Jun 2023 14:11:51 +0200
Subject: [PATCH] fix(dropdownfield): handle specific case with Entity itemtype

---
 inc/field/dropdownfield.class.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/inc/field/dropdownfield.class.php b/inc/field/dropdownfield.class.php
index 17193ffb4..d6dc4251d 100644
--- a/inc/field/dropdownfield.class.php
+++ b/inc/field/dropdownfield.class.php
@@ -304,14 +304,15 @@ public function buildParams($rand = null) {
       // Set specific root if defined (CommonTreeDropdown)
       $baseLevel = 0;
       if (isset($decodedValues['show_tree_root'])
-         && (int) $decodedValues['show_tree_root'] > 0
+         && ((int) $decodedValues['show_tree_root'] > 0
+           || $itemtype == Entity::class && (int) $decodedValues['show_tree_root'] > -1)
       ) {
          $sons = (new DBUtils)->getSonsOf(
             $itemtype::getTable(),
             $decodedValues['show_tree_root']
          );
          $decodedValues['selectable_tree_root'] = $decodedValues['selectable_tree_root'] ?? '1';
-         if (!isset($decodedValues['selectable_tree_root']) || $decodedValues['selectable_tree_root'] == '0') {
+         if ($decodedValues['selectable_tree_root'] == '0') {
             unset($sons[$decodedValues['show_tree_root']]);
          }