$ git clone -n https://gitee.com/mgb01105731/postfix.git /var/lib/mock/dist-an23-build-345517-70116/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-an23-build-345517-70116/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard origin/a23
HEAD is now at 2cff031 update to 3.7.9