CI jobs are run although dependencies are skipped

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Summary

Jobs are scheduled although dependencies are excluded by only: or except:.

Steps to reproduce

Run the following script which defines two mutually exclusive jobs dep-A and dep-B and a third one which takes artifacts from both ones:

stages:
- build
- deploy

dep-A:
    stage: build
    only:
    - X
    script:
    - echo A
    
dep-B:
    stage: build
    except:
    - X
    script:
    - echo B
    
deploy:
    stage: deploy
    dependencies:
    - dep-A
    - dep-B
    script:
    - echo deploy

Example Project

https://gitlab.com/ensc/test-ci-dep/pipelines/69583306

What is the current bug behavior?

The deploy job is scheduled (and would fail when it uses the artifacts)

What is the expected correct behavior?

The deploy job is skipped; e.g. in way like

deploy:
    only:
    - X
    except:
    - X

Relevant logs and/or screenshots

Output of checks

This bug happens on GitLab.com