Bernhard Suttner wrote:

new_host was replaced by new_vm because of:
https://github.com/theforeman/foreman/commit/637da2f28accc1378f0326d97adcbb2efc5d9808

There are still 2 places (vmware name, vmware volume disk_mode) in which new_host is used in:
app/views/compute_resources_vms/form/vmware/_volume.html.erb

This change seems to have broken provision on XenServer compute resources.

Applied in changeset c8efc502b6408664e3452d8d9d8f7c5c5bad9495.