Description of problem:

Missnamed nodes when using scheduler_hints_env.yaml

Cu has used scheduling hints to control node placement as per the instructions here https://access.redhat.com/documentation/en/red-hat-openstack-platform/8/paged/director-installation-and-usage/63-controlling-node-placement

Unfortunately they have encountered an issue where two nodes have been assigned the same name as two other nodes.

The issue only seems to be affecting the deployed instances, and not anything shown in nova list on the undercloud.

Version-Release number of selected component (if applicable):
RHEL OSP 8 

How reproducible:


Steps to Reproduce:
1. Deploy the setup by specifying scheduler_hints_env.yaml file. 
2. Some nodes are taking duplicate hostname. 
3.

Actual results:
overcloud nodes not picking the correct hostname.

Expected results:
overcloud nodes should pick the correct hostname. 

Additional info:
Issue is **not** similar to one mentioned in [1]

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1353920