$ git clone -n https://gitee.com/wency_cn/vsftpd.git /var/lib/mock/dist-an23-build-502904-74825/root/chroot_tmpdir/scmroot/vsftpd
Cloning into '/var/lib/mock/dist-an23-build-502904-74825/root/chroot_tmpdir/scmroot/vsftpd'...
$ git fetch origin 12789e9f15e72fe91c239f87604edf096503421f:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/vsftpd
 * [new ref]         12789e9f15e72fe91c239f87604edf096503421f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12789e9 Update code from upstream