$ git clone -n https://src.fedoraproject.org/rpms/fmit.git /var/lib/mock/f45-build-9118-399/root/chroot_tmpdir/scmroot/fmit
Cloning into '/var/lib/mock/f45-build-9118-399/root/chroot_tmpdir/scmroot/fmit'...
$ git fetch origin 0b014cf561ab483fc967c8dc629f4b7de29c8da5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fmit
 * [new ref]         0b014cf561ab483fc967c8dc629f4b7de29c8da5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b014cf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild