$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.3-lab-6839-16385/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.3-lab-6839-16385/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard fc7960b83d22d95b333fb0b29e5ee4d58271089a
Downloading SOURCES/xen-4.17.4.tar.gz (6.7 MB)
HEAD is now at fc7960b Test build