bhyve -> grub-bhyve without intermediate destroy

[Andriy Gapon]

This is what happens if I create and run a VM by using grub-bhyve and bhyve,
then exit from the VM via shutdown -r within it, and then try to run it again by
using grub-bhyve and bhyve:

Assertion failed: (error == 0), function fbsdrun_addcpu, file
/usr/src/usr.sbin/bhyve/bhyverun.c, line 261

grub-bhyve apparently succeeds, but bhyve can't start up.
Both invocation of bhyve are with "-c 1".

-- 
Andriy Gapon