Comment 3 for bug 1892423

@James, that makes sense per my findings; bundle phases are handled natively by Juju (deployed as a bundle), whereas deploy phases use juju-deployer which has the bug (this is a remnant from when Juju had no native bundle support).

A valid workaround, if your spec allows it, is to port it to use only bundle phases, thus bypassing juju-deployer entirely.