The reason is that https://github.com/openstack/fuel-web/blob/master/nailgun/nailgun/objects/cluster.py#L1009 uses hardcoded role name rather than tags.
The reason is that /github. com/openstack/ fuel-web/ blob/master/ nailgun/ nailgun/ objects/ cluster. py#L1009
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uses hardcoded role name rather than tags.