chore: add a `lazy` boolean attribute to `RESTObject`

This can be used to tell if a `RESTObject` was created using
`lazy=True`.

Add a message to the `AttributeError` if attribute access fails for an
instance created with `lazy=True`.

1 files changed, 2 insertions, 2 deletions

diff --git a/gitlab/mixins.py b/gitlab/mixins.py
index 519e83f..f33a1fc 100644
--- a/gitlab/mixins.py
+++ b/gitlab/mixins.py
@@ -135,11 +135,11 @@ class GetMixin(HeadMixin, _RestManagerBase):
         if lazy is True:
             if TYPE_CHECKING:
                 assert self._obj_cls._id_attr is not None
-            return self._obj_cls(self, {self._obj_cls._id_attr: id})
+            return self._obj_cls(self, {self._obj_cls._id_attr: id}, lazy=lazy)
         server_data = self.gitlab.http_get(path, **kwargs)
         if TYPE_CHECKING:
             assert not isinstance(server_data, requests.Response)
-        return self._obj_cls(self, server_data)
+        return self._obj_cls(self, server_data, lazy=lazy)
 
 
 class GetWithoutIdMixin(HeadMixin, _RestManagerBase):