$ git clone -n https://src.fedoraproject.org/rpms/scoutfish.git /var/lib/mock/f45-build-35687-698/root/chroot_tmpdir/scmroot/scoutfish
Cloning into '/var/lib/mock/f45-build-35687-698/root/chroot_tmpdir/scmroot/scoutfish'...
$ git fetch origin 52ca1c3fc9ef25c1f240812adc2b30732ace7d0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scoutfish
 * [new ref]         52ca1c3fc9ef25c1f240812adc2b30732ace7d0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52ca1c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild