$ git clone -n https://gitee.com/fundawang/postfix.git /var/lib/mock/dist-an23-build-348798-70439/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-an23-build-348798-70439/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard 4159ea2925f2c883676dcecc90661cbc803879b8
HEAD is now at 4159ea2 3.7.10