$ git clone -n https://github.com/xcp-ng-rpms/xs-opam-repo.git /var/lib/mock/v8.3-u-tescande1-6045-11445/root/chroot_tmpdir/scmroot/xs-opam-repo
Cloning into '/var/lib/mock/v8.3-u-tescande1-6045-11445/root/chroot_tmpdir/scmroot/xs-opam-repo'...
$ git reset --hard f4da1799ffad19766fac4cc827cb8663ab11417f
Downloading SOURCES/xs-opam-repo-6.74.0.tar.gz (23 MB)
HEAD is now at f4da179 Rebuild for Xen 4.17 test build