$ git clone -n https://src.fedoraproject.org/rpms/perl-Number-Compare.git /var/lib/mock/f45-build-25484-611/root/chroot_tmpdir/scmroot/perl-Number-Compare
Cloning into '/var/lib/mock/f45-build-25484-611/root/chroot_tmpdir/scmroot/perl-Number-Compare'...
$ git fetch origin 192fcf01b383029fe246c68ed462e2e001f218cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Number-Compare
 * [new ref]         192fcf01b383029fe246c68ed462e2e001f218cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 192fcf0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild