$ git clone -n https://gitee.com/wenyuzifang/mtr.git /var/lib/mock/dist-an23-build-469427-74027/root/chroot_tmpdir/scmroot/mtr
Cloning into '/var/lib/mock/dist-an23-build-469427-74027/root/chroot_tmpdir/scmroot/mtr'...
$ git fetch origin adf7d9714445a045251a0334781b3c5efd3dc92c:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/mtr
 * [new ref]         adf7d9714445a045251a0334781b3c5efd3dc92c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adf7d97 Update code from upstream