[v11.0.x] datatrails: recently loaded trails modify parent variables when making new steps

grafana / grafana

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

GNU Affero General Public License v3.0

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Backport 046eedaa4ca05bc2a1594e43d552b7147c3aa76d from #87284

Which issue(s) does this PR fix?:

Open an existing trail (or refresh a trail in progress)
Change the time range or the label filters
A new step is created, but if you go back to the parent step, it will now have state from the newly made step

Special notes for your reviewer:

Please check that:

[ ] It works as expected from a user's perspective.
[ ] If this is a pre-GA feature, it is behind a feature toggle.
[ ] The docs are updated, and if this is a notable improvement, it's added to our What's New doc.

grafana / grafana

[v11.0.x] datatrails: recently loaded trails modify parent variables when making new steps #87333