$ git clone -n https://gitee.com/yueeranna/postfix.git /var/lib/mock/dist-an23-build-248734-63298/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-an23-build-248734-63298/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard 9c1863233f46f19c4100cb6f52bf09724f38290a
HEAD is now at 9c18632 init from upstream