Ios: Apns-collapse-id doesn't seem to be working.

[CCOSTAN]

iOS device model, version and app version

Model Name: iPhone XS Max
Software Version: 13.5
App version: 2.0.0 (69)

Home Assistant Core Version
0.110.4

Describe the bug
The APNS-COLLAPSE-ID is not working. If you send 2 messages using the service entry, you get 2 independent messages.

To Reproduce
Use the development tools and send yourself a message twice using the apns-collapse-id and you will get to messages instead of one replacing the other.

Additional context
More testing and detail can be found here:
https://github.com/CCOSTAN/Home-AssistantConfig/issues/750

[TomBrien]

The following works fine for me sending to my notify.mobile_app... service using the developer tools. To test I make a minor change to the title value and send again. I see the notification title change but only have one notification.

title: "Motion Detected in Backyard"
message: "Someone might be in the backyard."
data:
  apns_headers:
    'apns-collapse-id': 'backyard-motion-detected'

[CCOSTAN]

Well, There you go @TomBrien !! It was subtle but you solved it for me.

I was using notify.ios_carloxsmax instead of notify.mobile_app_carlo_xsmax. That small change made all the difference. Now I need to figure out why the other ones are there and how to get rid of them.
Thanks!

[TomBrien]

Those old ones are from the previous version of the app (v1.5) and can be safely removed. Have a look at the migration guide