*string PrincipalID needs to be nil-guarded (#4258)
*string PrincipalID needs to be nil-guarded (#4258)


jackfrancis/acs-engine,Azure/acs-engine,Azure/acs-engine,jackfrancis/acs-engine,jackfrancis/acs-engine,jackfrancis/acs-engine,Azure/acs-engine,jackfrancis/acs-engine,Azure/acs-engine,Azure/acs-engine