Passing environment variables into context name in workflows not working

[petehouston]

I have different branches on Git, each branch is a different environment. All build steps of all branches are the same. I put all configuration variables into Context.

Here is my config.yml

(...omitted unnecessary parts...)

workflows:
  version: 2
  build_and_deploy:
    jobs:
      - build_step_1:
          context: project-env-${CIRCLE_BRANCH}
      - build_step_2:
          context: project-env-${CIRCLE_BRANCH}
          requires:
            - build_step_1

Now, when I push into branch dev, I expect it should build and load context project-env-dev; but it doesn’t.
It seems to me that CircleCI doesn’t render environment variables in context name.

[petehouston]

It seems to me that context is processed before environment variables. So should use parameters instead of env var.

instead of:
project-env-${CIRCLE_BRANCH}

use this:
project-env-<< pipeline.git.branch >>