$ git clone -n https://src.fedoraproject.org/rpms/dom4j.git /var/lib/mock/f42-build-3364272-45044/root/chroot_tmpdir/scmroot/dom4j
Cloning into '/var/lib/mock/f42-build-3364272-45044/root/chroot_tmpdir/scmroot/dom4j'...
$ git fetch origin 95ed2e1e50a59934e2d6e4aca96c295a55153eea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dom4j
 * [new ref]         95ed2e1e50a59934e2d6e4aca96c295a55153eea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95ed2e1 Update to latest upstream 2.1.4 release