$ git clone -n https://src.fedoraproject.org/rpms/xen.git /var/lib/mock/f33-build-355412-60116/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/f33-build-355412-60116/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard f458ebe460a5c29df70fb985d7e791f362c38ae0
HEAD is now at f458ebe revised patch for XSA-286 (mitigating performance impact)