$ git clone -n https://gitee.com/wenyuzifang/tar.git /var/lib/mock/dist-an23-build-470252-74061/root/chroot_tmpdir/scmroot/tar
Cloning into '/var/lib/mock/dist-an23-build-470252-74061/root/chroot_tmpdir/scmroot/tar'...
$ git fetch origin 6d9822927f27ef2bc39b7002d320b5486724bece:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tar
 * [new ref]         6d9822927f27ef2bc39b7002d320b5486724bece -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d98229 Update code from upstream