$ git clone -n https://src.fedoraproject.org/rpms/tcp_wrappers.git /var/lib/mock/f41-build-side-1-2670526-29059/root/chroot_tmpdir/scmroot/tcp_wrappers
Cloning into '/var/lib/mock/f41-build-side-1-2670526-29059/root/chroot_tmpdir/scmroot/tcp_wrappers'...
$ git fetch origin b90dcd4e3a043d8a22363ba402401d4c4a823054:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcp_wrappers
 * [new ref]         b90dcd4e3a043d8a22363ba402401d4c4a823054 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b90dcd4 convert license to SPDX