$ git clone -n https://gitee.com/fundawang/libproxy.git /var/lib/mock/dist-an23-build-284552-64755/root/chroot_tmpdir/scmroot/libproxy
Cloning into '/var/lib/mock/dist-an23-build-284552-64755/root/chroot_tmpdir/scmroot/libproxy'...
$ git fetch origin 45c7182905a3085d7a8ac89d305d4dfb6cb69c9f:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/libproxy
 * [new ref]         45c7182905a3085d7a8ac89d305d4dfb6cb69c9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45c7182 update br