We also should (in the generated plist of the app), enable background handling for push/remote notifications:

<key>UIBackgroundModes</key>
<array>
   <string>remote-notification</string>
</array>

Than in the generated code for the 'application: didReceiveRemoteNotification: fetchCompletionHandler' method, we need to invoke the

completionHandler([UIBackgroundFetchResultNewData| UIBackgroundFetchResultNoData)

Since we that handler is not invoked (w/ enabled background notification), the following warning would be issued:

Warning: Application delegate received call to -application:didReceiveRemoteNotification:fetchCompletionHandler: but the completion handler was never called.

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