Given the following workflow config:

            transitions:
                some-transition:
                    from: some-state
                    to:   some-other-state

Causes the transition to be created with the name some_transition without any warning whatsoever. I guess its the Configuration's fixXmlConfig that does this, so i guess it would affect other config areas as well, where you are free to choose a key and the configured component/bundle/module allows for - in such names.

Transitions explicitly allow the usage of - in transition names.
Currently this can be avoided by not using the keyed transition config, but the array like config

            transitions:
                -   name: some-transition
                    from: some-state
                    to:   some-other-state

If this cant be fixed, it would be nice to deprecate the keyed transition config and only allow the array style.