The changes to helpers/get.py @ get_user(...) in a6b7fed2fc resulted
in `is_blocking` no longer being present on all User objects retrieved
via `get_user`. This triggered a latent identifier shadow where the
property method `User.is_blocking` on the User model caused checks for
blocks on objects retrieved via `get_user` to always return True.
Notably: when the get_user return value left `is_blocking` unset and
thus implied False, the following expression yielded True due to the
presence of the first-class function at the same identifier:
hasattr(user, 'is_blocking') and user.is_blocking