login: Do not redirect to /login

If you accessed "/login" with "/login" as referrer, you got redirected
to the login page again after successful login.

1 files changed, 1 insertions, 1 deletions

diff --git a/utils/forms.py b/utils/forms.py
index a6ff4de..59afe61 100644
--- a/utils/forms.py
+++ b/utils/forms.py
@@ -36,7 +36,7 @@ class RedirectMixin(object):
     
     def _get_redirect_target(self):
         for target in request.args.get('next'), request.referrer:
-            if not target:
+            if not target or target == request.url:
                 continue
             if self._is_safe_url(target):
                 return target