$ git clone -n https://src.fedoraproject.org/rpms/389-ds-base.git /var/lib/mock/f41-build-718987-13080/root/chroot_tmpdir/scmroot/389-ds-base
Cloning into '/var/lib/mock/f41-build-718987-13080/root/chroot_tmpdir/scmroot/389-ds-base'...
$ git fetch origin ebbd5286c6b388ce1e75000cbe46dd707d417acb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/389-ds-base
 * [new ref]         ebbd5286c6b388ce1e75000cbe46dd707d417acb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ebbd528 Exclude i686 architecture