$ git clone -n https://gitee.com/fundawang/gmp.git /var/lib/mock/dist-an23-build-290930-64987/root/chroot_tmpdir/scmroot/gmp
Cloning into '/var/lib/mock/dist-an23-build-290930-64987/root/chroot_tmpdir/scmroot/gmp'...
$ git fetch origin 262d07cf4fcb15228f43c3b5bf939ebadaeeb6c4:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/gmp
 * [new ref]         262d07cf4fcb15228f43c3b5bf939ebadaeeb6c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 262d07c 6.3.0