Language menu broken in multi-host setting

[dholbach]

I'm a bit late to the party, as I was using an index.html with a small local diff in my set-up, but this PR appears to undo some parts of a43bb4e which seem to be needed in a multi-host setting.

Originally posted by @dholbach in #196 (comment)

[dholbach]

Here is a small test case:

gh repo clone dholbach/scroll-multisite
cd scroll-multisite/
hugo server

Point your browser to http://localhost:1313.

[dholbach]

cc @chatziko

Do you have an idea how we can make both use-cases work?

[dholbach]

a43bb4e introduced a regression. What can we do to fix it?

The easiest work-around I can think of without having done too much research is to use {{ hugo.IsMultihost }} to detect what to do and have both old and new behaviour in an if / else switch, but maybe there's an easier way to reconcile both use-cases?