Verified this bug on the following version
# cat /etc/redhat-release
Red Hat Enterprise Virtualization Hypervisor release 7.2 (20151112.0.el7ev)
# rpm -qa ovirt-node
ovirt-node-3.2.3-27.el7.noarch
Test steps
1. installed rhevh
2. enable ssh
3. ssh via another host, answer yes to ssh prompt for saving the host udentification
4. reboot the rhevh host
5. ssh again
6. reboot the rhevh host once more
7. ssh again
Step 5 & 7, the SSH fingerprint is not changed.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2526.html