[Pipeline] No error when invoking "git" step w/o installing Git plugin

[Logan MAUZAIZE]

I don't if it's a general problem when invoking non-existing function but doing a fresh install from Jenkins 2.19.1 and Pipeline 2.4 (

Pipeline: SCM Step 2.2), but not Git Plugin.

When invoking this Pipeline script:

stage('Checkout') {

  git credentialsId: 'GIT_SSH_KEY', url: 'ssh://g...@stash.xxx.com/project/repository.git'

}

There's absolutely no output and no error.

Installing Git plugin 3.0.0 makes the Pipeline script works like a charm but I was expecting error if "step command" isn't available. Is it a bug or I'm missing something ?