$ git clone -n https://github.com/xcp-ng-rpms/xs-opam-repo.git /var/lib/mock/v8.3-u-stormi1-5899-11062/root/chroot_tmpdir/scmroot/xs-opam-repo
Cloning into '/var/lib/mock/v8.3-u-stormi1-5899-11062/root/chroot_tmpdir/scmroot/xs-opam-repo'...
$ git reset --hard 73baa8e940a135f761bbf6256e12d961b79e91a0
Downloading SOURCES/xs-opam-repo-6.74.0.tar.gz (23 MB)
HEAD is now at 73baa8e Merge branch 'XS-8.3'