$ git clone -n https://src.fedoraproject.org/rpms/rust-ciborium.git /var/lib/mock/f38-build-side-42-init-devel-1395696-31050/root/chroot_tmpdir/scmroot/rust-ciborium
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1395696-31050/root/chroot_tmpdir/scmroot/rust-ciborium'...
$ git fetch origin d653279af07dae60f6cf5375e19173e56157690b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ciborium
 * [new ref]         d653279af07dae60f6cf5375e19173e56157690b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d653279 Update to version 0.2.1