Prettifier-ing a query removes the RefID and breaks panel previews in edit mode

[kbweave]

When ever a query is prettified its grafana RefID is removed and query results are no longer displayed in the preview. If another query is prettified then an error is shown in the UI.

I reproduced this on my instance running victoriametrics-datasource version 0.9.15 and on the play-grafana.victoriametrics.com instance using this panel

screencast_2025-10-17-134829.mp4

[kbweave]

The more I look into this I wonder if this is actually a Grafana bug.

[arturminchukov]

@kbweave thanks for the issue! The PR with the fix was merged and will be included to the next release.

[arturminchukov]

@kbweave , release v0.19.6 with the fix was published in grafana.