$ git clone -n https://gitee.com/src-opencloudos-rpms/expat.git /var/lib/mock/dist-oc8-build-252609-84210/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-oc8-build-252609-84210/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin 593ae1ee66717a365800695fe45f711120064b2d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/expat
 * [new ref]         593ae1ee66717a365800695fe45f711120064b2d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 593ae1e import expat-2.5.0-4.tl3