$ git clone -n https://gitee.com/src-opencloudos-rpms/pyserial.git /var/lib/mock/dist-oc8-build-74463-50513/root/chroot_tmpdir/scmroot/pyserial
Cloning into '/var/lib/mock/dist-oc8-build-74463-50513/root/chroot_tmpdir/scmroot/pyserial'...
$ git fetch origin c008615a29b5d974f2dbaacca1b891cff18cc2b9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/pyserial
 * [new ref]         c008615a29b5d974f2dbaacca1b891cff18cc2b9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c008615 import pyserial-3.1.1-9.tl3