---
fixes:
  - |
    Fixes potential failure on reading/setting boot device of libvirt domain.
    Prior to this fix, boot device has only been respected in the boot loader
    part of libvirt domain XML. However per-device boot configuration can
    also be used. If the latter way is in place in a libvirt domain, reading
    boot device would yield nothing, while setting it in the boot loader would
    fail. This fix respects both ways of configuring libvirt boot device
    preferring the per-device configuration when setting new boot device.