$ git clone -n https://src.fedoraproject.org/rpms/fvwm.git /var/lib/mock/f45-build-9370-403/root/chroot_tmpdir/scmroot/fvwm
Cloning into '/var/lib/mock/f45-build-9370-403/root/chroot_tmpdir/scmroot/fvwm'...
$ git fetch origin 7d2c180b13056620320e4432cd5c0ff6f9266369:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fvwm
 * [new ref]         7d2c180b13056620320e4432cd5c0ff6f9266369 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d2c180 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild