From 38945728a01fb6d51a9234946eb962cbe2fbbf80 Mon Sep 17 00:00:00 2001
From: Samuel Vanhove <samuel@symbiotic.coop>
Date: Thu, 11 May 2023 14:28:40 -0400
Subject: [PATCH] Deal with group update without any parent

---
 CRM/Contact/BAO/Group.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/CRM/Contact/BAO/Group.php b/CRM/Contact/BAO/Group.php
index 138bc13988..7c6df47a41 100644
--- a/CRM/Contact/BAO/Group.php
+++ b/CRM/Contact/BAO/Group.php
@@ -372,8 +372,11 @@ class CRM_Contact_BAO_Group extends CRM_Contact_DAO_Group {
       }
 
       // get current parents for removal if not in the list anymore
+      $currentParentGroupIDs = [];
       $parents = CRM_Core_DAO::getFieldValue('CRM_Contact_DAO_Group', $params['id'], 'parents');
-      $currentParentGroupIDs = explode(',', $parents);
+      if (!empty($parents)) {
+        $currentParentGroupIDs = explode(',', $parents);
+      }
     }
 
     // form the name only if missing: CRM-627
-- 
2.25.1