$ git clone -n https://gitee.com/SmallPegasus/iproute.git /var/lib/mock/dist-an23.1-devel-build-363216-71228/root/chroot_tmpdir/scmroot/iproute
Cloning into '/var/lib/mock/dist-an23.1-devel-build-363216-71228/root/chroot_tmpdir/scmroot/iproute'...
$ git fetch origin 88a1001459e9f957dad0a1c9a259d8aa7950f24a:KOJI_FETCH_HEAD
From https://gitee.com/SmallPegasus/iproute
 * [new ref]         88a1001459e9f957dad0a1c9a259d8aa7950f24a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88a1001 update iproute.spec.