$ git clone -n https://gitee.com/src-opencloudos-rpms/expat.git /var/lib/mock/dist-oc8-build-241596-82861/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-oc8-build-241596-82861/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin 02d2157e2b18aff7c930aeddabb51bda4e58f372:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/expat
 * [new ref]         02d2157e2b18aff7c930aeddabb51bda4e58f372 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 02d2157 import expat-2.5.0-2.tl3