Ignoring notifications with empty body

[vpont]

Hi,

I’m trying to ignore notifications that have an empty body, but I haven’t been able to make it work.

I’ve tried the following rules:

{
  "notification-visibility": {
    "state": "ignored",
    "app-name": "Test",
    "body": ""
  }
}

and:

{
  "notification-visibility": {
    "state": "ignored",
    "app-name": "Test",
    "body": "^$"
  }
}

However, neither of them works as expected.
Running:

notify-send -a Test "My Title" ""

still shows the notification.

Any help is appreciated — thanks!