How to override "prod" parent full deployment for branch deployments

[justin-fundrise]

I am using the branch_deployments.yml in order to test changes being made via a github pull request.

We have multiple deployments in our dagster cloud account. When I open up a Pull Request and the branch deployment runs, I can see it appear in Dagster Cloud, but it is using parent full deployment (prod) which is incorrect for the repo I am working in. I would like to be able to overwrite/set the parent deployment so that way I can pull in the correct environment variables for this repo.

Is it possible to set the parent deployment somewhere within the branch_deployments.yml file? or elsewhere?