$ git clone -n https://gitee.com/wenyuzifang/libesmtp.git /var/lib/mock/dist-an23-build-469227-74027/root/chroot_tmpdir/scmroot/libesmtp
Cloning into '/var/lib/mock/dist-an23-build-469227-74027/root/chroot_tmpdir/scmroot/libesmtp'...
$ git fetch origin 49486344232557da12196020d17398be4fc6fa62:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/libesmtp
 * [new ref]         49486344232557da12196020d17398be4fc6fa62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4948634 Update code from upstream