Google Play Services 8.4.0 breaks Google Cloud Messaging for Android if iOS is also used

Question

There are several posts that describe aspects of this issue, but there hasn\'t yet been a satisfying answer, so I\'m attempting to collate them all here in hopes of getting

Answer 1

Se my answer here. The solution I found is to just send this e field with value zero on my server. For Android it worked, have not tested on iOS yet.