fix: correctly load parent model objects during read_all

Author: jaredhendrickson13

pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Core/Model.inc

@@ -1968,7 +1968,10 @@ class Model {
             $parent_id = is_numeric($parent_id) ? (int) $parent_id : $parent_id;
 
             # Create a new Model object for this internal object and assign its ID
-            $model_object = new $model(id: $internal_id, parent_id: $parent_id);
+            $model_object = new $model(id: $internal_id, parent_id: $parent_id, skip_init: true);
+
+            # Obtain the parent Model object if this Model has a parent Model class assigned
+            $model_object->get_parent_model();
 
             # Populate the Model object using its current internal values and add it to the array of all Model objects
             $model_object->from_internal_object($internal_object);