Bug: Empty page on filtering with filter with no tags

[johannaengland]

Describe the bug
I have a filter that looks like this when getting api/v1/notificationprofiles/filters/3/

{
  "pk": 3,
  "name": "NAV",
  "filter_string": "{\"sourceSystemIds\": [1], \"tags\": []}",
  "filter": {
    "sourceSystemIds": [
      1
    ],
    "open": null,
    "acked": null,
    "stateful": null,
    "maxlevel": null,
    "event_type": null
  }
}

and like this for api/v2/notificationprofiles/filters/3/

{
  "pk": 3,
  "name": "NAV",
  "filter": {
    "sourceSystemIds": [
      1
    ],
    "open": null,
    "acked": null,
    "stateful": null,
    "maxlevel": null,
    "event_type": null
  }
}

Note that in the filter field there is no entry for tags, which is valid for the backend.

When I try to filter by this filter I only get an empty page and I also see that no request to the backend is being made.

To Reproduce
Steps to reproduce the behavior:

1. Post a filter with no tags to the backend via the api (do not do it via the frontend, because then tags will be an empty list) with this content:

{
  "name": "test",
  "filter": {
    "sourceSystemIds": [
      1
    ]
  }
}

2. Now in the frontend: Select that filter.
3. See empty page.

Expected behavior
To be shown the normal dashboard with the incidents included in that filter.

Screenshots

Desktop (please complete the following information):

• OS: Ubuntu 22.04 LTS
• Browser: Firefox
• Version: both 1.12.0 and 1.13.0

[podliashanyk]

Reproduced