$ git clone -n https://gitee.com/src-opencloudos-rpms/expat.git /var/lib/mock/dist-oc8-build-75089-51959/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-oc8-build-75089-51959/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin 5c59a512970e124d8a7b548fa84d11ae40400e80:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/expat
 * [new ref]         5c59a512970e124d8a7b548fa84d11ae40400e80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c59a51 import expat-2.2.5-13.tl3