Multiple jobs for same environment

Summary

It is possible to specify multiple jobs in a pipeline that deploy to the same environment. If in the first job an environment url is specified, there is ~50% chance the CI_ENVIRONMENT_URL variable is defined in the second job.

In practice I use this to first deploy a server, then provision it with some data.

Steps to reproduce

Creat the following .gitlab-ci.yaml:

image: busybox

stages:
  - deploy
  - provision

deploy:
  stage: deploy
  environment:
    name: test
    url: https://example.com
  script:
    - echo "CI_ENVIRONMENT_URL: $CI_ENVIRONMENT_URL"

provision:
  stage: provision
  environment:
    name: test
  script:
    - echo "CI_ENVIRONMENT_URL: $CI_ENVIRONMENT_URL"

Example Project

https://gitlab.com/appsemble/appsemble/pipelines/67191004

Notice the review provision job took 2 tries because of this issue.

What is the current bug behavior?

CI_ENVIRONMENT_URL is randomly defined.

What is the expected correct behavior?

CI_ENVIRONMENT_URL is either defined, or not defined.

Relevant logs and/or screenshots

https://gitlab.com/appsemble/appsemble/-/jobs/236213385

Output of checks

This bug happens on GitLab.com