$ git clone -n https://src.fedoraproject.org/rpms/xen.git /var/lib/mock/f40-build-740805-109778/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/f40-build-740805-109778/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard ad078f957fcdc8755a8585f90368a012a6e8c530
HEAD is now at ad078f9 4 security issues