From 43097f4b2c03989a3677c096230765d7e5c70ddc Mon Sep 17 00:00:00 2001
From: Micah Wittman <github.m@wittman.org>
Date: Wed, 8 Oct 2025 14:02:57 -0300
Subject: [PATCH] Product details item groups read property on null fix

$groups->getFirst() can return null which was not guarded against.
If null there are zero groups.
---
 Store/admin/components/Product/Details.php | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Store/admin/components/Product/Details.php b/Store/admin/components/Product/Details.php
index 76ad226b..b56b0823 100644
--- a/Store/admin/components/Product/Details.php
+++ b/Store/admin/components/Product/Details.php
@@ -1125,13 +1125,17 @@ private function buildItemGroups()
         $groups = $this->queryItemGroups();
         $has_items = (count($groups) > 0);
 
-        // if there is one row and the groupnum is 0 then there are no
+        // if there is now rows or one row and the groupnum is 0 then there are no
         // item_groups with items in them for this product. If $groups has 0
         // elements, there are no items
 
-        if (count($groups) == 1 && $groups->getFirst()->item_group == 0) {
+        $first_group = $groups->getFirst();
+        if (
+            $first_group === null ||
+            (count($groups) === 1 && $first_group->item_group === 0)
+        ) {
             $num_groups = 0;
-        } elseif ($groups->getFirst()->item_group == 0) {
+        } elseif ($first_group->item_group === 0) {
             $num_groups = count($groups) - 1;
         } else {
             $num_groups = count($groups);