$ git clone -n https://src.fedoraproject.org/rpms/perl-Excel-Writer-XLSX.git /var/lib/mock/f45-build-23411-597/root/chroot_tmpdir/scmroot/perl-Excel-Writer-XLSX
Cloning into '/var/lib/mock/f45-build-23411-597/root/chroot_tmpdir/scmroot/perl-Excel-Writer-XLSX'...
$ git fetch origin 7bc818b517dc5c738604516bb7e8aed33bfe8013:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Excel-Writer-XLSX
 * [new ref]         7bc818b517dc5c738604516bb7e8aed33bfe8013 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bc818b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild