$ git clone -n https://src.fedoraproject.org/rpms/perl-Boost-Geometry-Utils.git /var/lib/mock/f40-build-732677-104925/root/chroot_tmpdir/scmroot/perl-Boost-Geometry-Utils
Cloning into '/var/lib/mock/f40-build-732677-104925/root/chroot_tmpdir/scmroot/perl-Boost-Geometry-Utils'...
$ git fetch origin d11389d7e05c96fd834608fbdbb946e110efbb55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Boost-Geometry-Utils
 * [new ref]         d11389d7e05c96fd834608fbdbb946e110efbb55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d11389d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild