$ git clone -n https://gitee.com/fundawang/libvirt.git /var/lib/mock/dist-an23-build-311349-67129/root/chroot_tmpdir/scmroot/libvirt
Cloning into '/var/lib/mock/dist-an23-build-311349-67129/root/chroot_tmpdir/scmroot/libvirt'...
$ git fetch origin 5e190a4a8318386abf47f9eb3ba1c20a396d530b:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/libvirt
 * [new ref]         5e190a4a8318386abf47f9eb3ba1c20a396d530b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e190a4 update br