$ git clone -n https://src.fedoraproject.org/rpms/abrt.git /var/lib/mock/f38-build-side-42-init-devel-878518-28477/root/chroot_tmpdir/scmroot/abrt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-878518-28477/root/chroot_tmpdir/scmroot/abrt'...
$ git fetch origin e76a84e22db7e8b28b6791721202b84b022942bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/abrt
 * [new ref]         e76a84e22db7e8b28b6791721202b84b022942bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e76a84e Update to upstream release 2.17.1