$ git clone -n https://gitee.com/dashnfschina/openvswitch.git /var/lib/mock/dist-an23-build-376514-71717/root/chroot_tmpdir/scmroot/openvswitch
Cloning into '/var/lib/mock/dist-an23-build-376514-71717/root/chroot_tmpdir/scmroot/openvswitch'...
$ git fetch origin cb8a7ed69ca1e1b375fc0f17b5a776cdcf4525e1:KOJI_FETCH_HEAD
From https://gitee.com/dashnfschina/openvswitch
 * [new ref]         cb8a7ed69ca1e1b375fc0f17b5a776cdcf4525e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb8a7ed 333