$ git clone -n https://src.fedoraproject.org/rpms/xen.git /var/lib/mock/f38-build-723502-99109/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/f38-build-723502-99109/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard f3cac52735cbd10e6bbd305401dd832bca994fd0
HEAD is now at f3cac52 Mishandling of guest SSBD selection on AMD hardware