FCM notification messages not collapsing
<p>I noticed that when i send FCM payload when app is in background, i see the notification message being shown which is as per docs, but i see native notifications for every notification message received. When my app was in the background, i received 3 push messages (with notification payload) and i now see 3 native notifications in the notification tray. Why are they not getting collapsed ? By default, according to FCM docs, all notification messages are collapsible.
Reference to the doc: <a href="https://firebase.google.com/docs/cloud-messaging/concept-options" rel="nofollow noreferrer">https://firebase.google.com/docs/cloud-messaging/concept-options</a></p>

<p>I am using compile 'com.google.firebase:firebase-messaging:10.0.0' in my app\build.gradle</p>