$ git clone -n https://github.com/xcp-ng-rpms/xs-opam-repo.git /var/lib/mock/v8.3-testing-4302-4364/root/chroot_tmpdir/scmroot/xs-opam-repo
Cloning into '/var/lib/mock/v8.3-testing-4302-4364/root/chroot_tmpdir/scmroot/xs-opam-repo'...
$ git reset --hard ffbe96660c1b6dc8a3738553916204bcfcb5065a
Downloading SOURCES/xs-opam-repo-6.60.0.tar.gz (13 MB)
HEAD is now at ffbe966 Merge branch 'XS-8.3'