Summary:Hello!
As described in #3288, the `PushNotificationsIOS` `register` callback fires twice. See that issue for discussion.
There wasn't any feedback on a proposed PR, so this is the first effort. This change does make the register callback act as expected on my device. I can make any changes necessary.
Thanks!
Closes https://github.com/facebook/react-native/pull/6111
Differential Revision: D2970806
Pulled By: nicklockwood
fb-gh-sync-id: a8d0b53210f85cc24b4befdb0e90af46512fa4fb
shipit-source-id: a8d0b53210f85cc24b4befdb0e90af46512fa4fb