$ git clone -n https://src.fedoraproject.org/rpms/rust-systemstat.git /var/lib/mock/f38-build-side-42-init-devel-823997-28358/root/chroot_tmpdir/scmroot/rust-systemstat
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-823997-28358/root/chroot_tmpdir/scmroot/rust-systemstat'...
$ git fetch origin db7e2e26d71ef36e82a4561eb776829bdf7fff46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-systemstat
 * [new ref]         db7e2e26d71ef36e82a4561eb776829bdf7fff46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db7e2e2 Disable tests