$ git clone -n https://github.com/xcp-ng-rpms/xs-opam-repo.git /var/lib/mock/v8.3-incoming-8579-26248/root/chroot_tmpdir/scmroot/xs-opam-repo
Cloning into '/var/lib/mock/v8.3-incoming-8579-26248/root/chroot_tmpdir/scmroot/xs-opam-repo'...
$ git reset --hard 10e4512b532b6e327ba74c30b55a38603c2c1b47
fatal: Could not parse object '10e4512b532b6e327ba74c30b55a38603c2c1b47'.