Summary:
Ref T6870. Since it does not make sense to redirect the user to the login form after they log in, we try not to set the login form as the `next` cookie.
However, the current check is hard-coded to `/auth/start/`, and the form can also be served at `/login/`. This has no real effect on normal users, but did make debugging T6870 confusing.
Instead of using a hard-coded path check, test if the controller was delegated to. If it was, store the URI. If it's handling the request without delegation, don't.
Test Plan:
- Visited login form at `/login/` and `/auth/start/`, saw it not set a next URI.
- Visited login form at `/settings/` (while logged out), saw it set a next URI.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley, lpriestley
Maniphest Tasks: T6870
Differential Revision: https://secure.phabricator.com/D11292
e0aa33c46b