v1.22.1
Grafana wraps its own identifiers in double underscores and sends them as labels as well as annotations. v1.22.0 excluded the annotations, so a card still carried them as label lines:
name: backups-tor
__alert_rule_namespace_uid__: terraform-alerts
__alert_rule_uid__: afsxq6b2qb85cb
cluster: assets-fra1-prod
Labels now follow the same rule as annotations. A card for a Grafana managed alert is 3 lines shorter.
The test payload for these templates was written from a card captured before Grafana adopted the reserved naming, so it used alert_rule_uid, orgId, values and value_string without underscores. It is now taken from a live payload. Plain names remain handled for senders that use them.
Full Changelog: v1.22.0...v1.22.1