$ git clone -n https://gitee.com/fundawang/libvirt.git /var/lib/mock/dist-an23-build-311361-67129/root/chroot_tmpdir/scmroot/libvirt
Cloning into '/var/lib/mock/dist-an23-build-311361-67129/root/chroot_tmpdir/scmroot/libvirt'...
$ git fetch origin 0240a91891cebe5989655eaa9131f37c8a81394f:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/libvirt
 * [new ref]         0240a91891cebe5989655eaa9131f37c8a81394f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0240a91 update br