It's a bilateral incident between ID and AU so I have no comment.
P.S.: But from a national interests perspective, ID, not AU, is more important trade partner (both in terms of aggregate size and balance of payment) for CN in the long run. Moreover, though there are many existential differences/disputes between CN and ID, these are facts, but AU is a natural ally of CN's only enemy state, that's a whole new level of difference. I rank ID higher than AU in CN's diplomatic priority, and CN should act accordingly whenever situation deems necessary. Just my opinion, critics welcome my friend.