$ git clone -n https://gitee.com/src-opencloudos-rpms/libmpc.git /var/lib/mock/dist-oc9-pre-build-238666-82547/root/chroot_tmpdir/scmroot/libmpc
Cloning into '/var/lib/mock/dist-oc9-pre-build-238666-82547/root/chroot_tmpdir/scmroot/libmpc'...
$ git fetch origin b476d26c61f89c105ba11e6446f50dae81537ff8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libmpc
 * [new ref]         b476d26c61f89c105ba11e6446f50dae81537ff8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b476d26 import libmpc-1.3.1-5.tl4