$ git clone -n https://gitee.com/wency_cn/dos2unix.git /var/lib/mock/dist-an23-build-502038-74794/root/chroot_tmpdir/scmroot/dos2unix
Cloning into '/var/lib/mock/dist-an23-build-502038-74794/root/chroot_tmpdir/scmroot/dos2unix'...
$ git fetch origin b4f110eb702f98d01c7f35baa6dfe7aea804b7c9:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/dos2unix
 * [new ref]         b4f110eb702f98d01c7f35baa6dfe7aea804b7c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4f110e Update code from upstream