Make sure Anitya actually looks at the OpenID errors

This would prevent a redirect loop if the OpenID endpoint
would be broken or unreachable for any of the three
"hardcoded" providers.

Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>
> Also, note you already do this on line 174.

Funny thing is, I don't think we do anything with these messages anywhere ^_^