Enable Push Notification generates error

[Don]

Hello,

On the latest 06e1af2b1d

Repro:

1. Go to Notifications
2. Enable Notifications (The success notification not arrive)
3. Check console

By the way the notifications seems to also works after this.

Error in console:

---

If i uncheck this option on meta

Then the success notification arrive successfully and the console is errorless.

Thank you!

[Falco]

I can reproduce this, taking a look at it.

Looks like a regression introduced at

FIX: automatically expire bad push channels

This here should fix it

FIX: Use newly created PushSubscription object for push test message