Comment 6 for bug 1766872

If "ignore-dependencies" is specified, then all unit dependencies are ignored for this new job and the operation is executed immediately. If passed, no required units of the unit passed will be pulled in, and no ordering dependencies will be honored. This is mostly a debugging and rescue tool for the administrator and should not be used by applications

based on the above description, --job-mode may apply in friendly-recovery as it fit in a debugging purpose IMHO.