Audio/subtitles tracks cycle broken

[AirPort]

In the latest git master (on Os X 10.11.3, although I doubt this is platform-related) the audio and subtitles cycling via keybinds is broken, with mpv only cycling between 'no' and the first audio/subs track, ignoring any other one in the file. I tested several .mkvs with multiple tracks and I've been able to reproduce this 100% of the times.
If a different track is selected before the playback's start (e.g. mpv file --sid=2 or --aid=2), the player manage to successfully start with it, but again pressing the cycling key(s) triggers the issue.

It seems to be a080432 fault, up until it 5c8378b works fine.