$ git clone -n https://gitee.com/mgb01105731/rpm-ostree_2.git /var/lib/mock/dist-an23-build-447694-73363/root/chroot_tmpdir/scmroot/rpm-ostree_2
Cloning into '/var/lib/mock/dist-an23-build-447694-73363/root/chroot_tmpdir/scmroot/rpm-ostree_2'...
$ git fetch origin ffecc438a249f76dbd52711e2809755a064d74ae:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/rpm-ostree_2
 * [new ref]         ffecc438a249f76dbd52711e2809755a064d74ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffecc43 Rebuild with rust-toolset and zchunk