Google Cloud Messaging (GCM) support two types of push messages: "notification" messages and "data" messages. According to the documentation, notification messages are collapsible by default, while data messages are non-collapsible by default.
In order to make a data message collapsible, you need to specifiy a collapseKey. My question is: How can you make a notification message non-collapsible?
Note: The question applies to Firebase Cloud Messaging (FCM) as well.
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