Authorization on multi-language site, wrong redirect url

[lufog]

After authorization on the site, I get to /en/en instead of /en

---

Grav v1.7.0-beta.4 Login v3.0.3

[mahagr]

Can be reproduced with:

plugins/login.yaml

enabled: true
route: /login
redirect_to_login: true
redirect_after_login: '/'

system.yaml

languages:
  supported:
    - en
  default_lang: en
  include_default_lang: true

[mahagr]

There is still an issue if referrer fallback is getting used. It contains the language prefix.

[raph31t]

The issue is still here :

• I created my site with Grav 1.7.5, and didn't have the issue and then I updated to the latest 1.7.13, and the issue appears.

[dexterxx-pl]

See #279