Some translation links broken

[sake92]

I mentioned here that there is an issue with links to tour translations.
E.g. if you go to basics and choose Bosnian, you'll get a 404: /ba/tour/sics.html instead of /ba/tour/basics.html

Issue seems to be here. The remove_first: l seems to be removing the "ba" part. Also happens for other languages, e.g. "Classes" for Spanish (removes "es"). xD

I made this issue to ask if there is anyone here who worked on this, will removing this break something I don't know? 😄 Another fix could be to remove "/ba" or "ba/" if that would be more precise...

BTW, I'm making an sbt plugin in Scala that could be an alternative to Jekyll in future (relative links are trivial here, no markup, just plain Scala).