$ git clone -n https://src.fedoraproject.org/rpms/golang-x-net.git /var/lib/mock/f38-build-side-42-init-devel-668162-26655/root/chroot_tmpdir/scmroot/golang-x-net
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-668162-26655/root/chroot_tmpdir/scmroot/golang-x-net'...
$ git fetch origin 04b4c3305d301df9703cfbdf2bc8a15ed5a58c6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-net
 * [new ref]         04b4c3305d301df9703cfbdf2bc8a15ed5a58c6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04b4c33 Update to latest version