When trying to load the channel info of a channel that is redirected (the example I know of is xanbot, but there are many more I assume), the API redirects to the username instead of the ID.
So given a request of
https://api.twitch.tv/kraken/channels/29201680 on v5 will redirect to
https://api.twitch.tv/kraken/channels/xangold which was perfectly fine on v3 but broken on v5.
I would expect it to redirect to