$ git clone -n https://src.fedoraproject.org/rpms/deepin-network-core.git /var/lib/mock/f41-build-side-1-2929867-35114/root/chroot_tmpdir/scmroot/deepin-network-core
Cloning into '/var/lib/mock/f41-build-side-1-2929867-35114/root/chroot_tmpdir/scmroot/deepin-network-core'...
$ git fetch origin 170a0a4ce5329cfb34feff23ccefbf8346cf1568:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-network-core
 * [new ref]         170a0a4ce5329cfb34feff23ccefbf8346cf1568 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 170a0a4 rebuild