`none` and `any` are rendered as users in assignee filter
This is a reoccurrence of https://gitlab.com/gitlab-org/gitlab-ce/issues/57692
https://gitlab.com/gitlab-org/gitlab-ce/commit/9745d0de2ff605a03e7fbb95d0f71279bbd4afa5 Refactors the rendering of tokens and is missing the toLowerCase
added in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/25235
This was included in 11.9 RC4
We need this because most tokens are now None
and Any
.