Dominic Geevarghese of Red Hat reports: RHV 4 Manager fails to validate expired passwords when prompted to change a password.
Acknowledgments: Name: Dominic Geevarghes (Red Hat)
This issue has been addressed in the following products: RHEV Engine version 4.0 Via RHSA-2017:0257 https://rhn.redhat.com/errata/RHSA-2017-0257.html