$ git clone -n https://src.fedoraproject.org/rpms/perl-Struct-Dumb.git /var/lib/mock/f40-build-2630602-65685/root/chroot_tmpdir/scmroot/perl-Struct-Dumb
Cloning into '/var/lib/mock/f40-build-2630602-65685/root/chroot_tmpdir/scmroot/perl-Struct-Dumb'...
$ git fetch origin 434d911c48d03e467c290106ced55de98915c8cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Struct-Dumb
 * [new ref]         434d911c48d03e467c290106ced55de98915c8cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 434d911 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild