# What this PR does
Fixes a regression that was introduced when actions were remapped to new
webhooks. Validation in the serializer was making the user field no
longer accept blank and None values. This PR makes those values accepted
again.
## Which issue(s) this PR fixes
https://github.com/grafana/terraform-provider-grafana/issues/1025
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
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