Fix multiple array field values

Author: Joel-Luca

django_features/custom_fields/serializers.py

@@ -96,6 +96,7 @@ def get_fields(self) -> dict[str, Any]:
         fields = super().get_fields()
         if self.exclude_custom_fields:
             return fields
+        self._custom_fields = []
         custom_fields = list(CustomField.objects.for_model(self.model))
         for field in custom_fields:
             self._custom_fields.append(

django_features/serializers.py

@@ -50,6 +50,7 @@ def get_fields(self) -> dict[str, Any]:
         fields: dict[str, Any] = dict()
         nested_fields: dict[str, Any] = dict()
         nested_field_fields: dict[str, list[str]] = dict()
+        self.related_fields: list = []
         for internal_name in self.mapping_fields:
             if internal_name in self.exclude:
                 continue