$ git clone -n https://gitee.com/src-opencloudos-rpms/expat.git /var/lib/mock/dist-oc8-build-113339-67850/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-oc8-build-113339-67850/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin e2561ff25d3567bafcf4bafa36b2fa4ee5355afc:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/expat
 * [new ref]         e2561ff25d3567bafcf4bafa36b2fa4ee5355afc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2561ff import expat-2.2.5-15.tl3