Duplicate images in notifications from .app.status.summary.images

[den-is]

I'm trying to output list of images in slack message:

  {
    "title": "Images",
    "value": "{{ .app.status.summary.images | join "\\n" }}",
    "short": false
  }

Basically, it works. But every then and now I'm getting duplicate images in the list

Example output:

Images
gcr.io/cloud-sql-connectors/cloud-sql-proxy:2.14.2
gcr.io/project/myapp:8b4b03c
gcr.io/project/myapp:fe8c5b1

One of the gcr.io/project/myapp tags is from previous sync and the other one is from the new sync/deployment.

At this moment I was not able to catch, why and .app.status.summary.images has extra images.
Probably app.status update/cleanup happens quite fast, but argocd-notifications are faster. :)

Anyone had the same issue? any possible solutions?