🩹 fix: Set group default

src/Fields/Group.php

@@ -2,11 +2,27 @@
 
 namespace Otomaties\AcfObjects\Fields;
 
+use Otomaties\AcfObjects\Contracts\CollectionContract;
+
 class Group extends Collection
 {
-    public static function prepareData(mixed $data): mixed
+    public function default(mixed $values): CollectionContract
     {
+        if ($this->isEmpty()) {
+            $this->items = $values;
+        } else {
+            foreach ($values as $key => $value) {
+                if (! isset($this->items[$key])) {
+                    $this->items[$key] = $value;
+                }
+            }
+        }
 
+        return $this;
+    }
+
+    public static function prepareData(mixed $data): mixed
+    {
         if (is_bool($data) && ! $data) {
             $data = [];
         }