Weird push message received on app start

Question

I\'m getting a weird push message captured by my push service:

Bundle[{CMD=RST_FULL, from=google.com/iid, android.support.content.wakelockid=1}]

Answer 1

I realized the same issue today. First, this message must come from google itself (from=google.com/iid), otherwise the from attribute would be the id of your project in google developer console (i.e. 475832179747). But to be sure, I shutdown our application server, and I still received the message.

I always receive it when I newly register at the Google Cloud Messaging server. It's not a big problem because you can filter the message by the intent-action, but I would really like to know the purpose of it.