$ git clone -n https://gitee.com/wenjie2025/postfix_1770423288.git /var/lib/mock/dist-an23-build-512299-75090/root/chroot_tmpdir/scmroot/postfix_1770423288
Cloning into '/var/lib/mock/dist-an23-build-512299-75090/root/chroot_tmpdir/scmroot/postfix_1770423288'...
$ git fetch origin 62d5e4d2f4537e5438c4e66c3b004f15e7301b87:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/postfix_1770423288
 * [new ref]         62d5e4d2f4537e5438c4e66c3b004f15e7301b87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62d5e4d Update code from upstream