$ git clone -n https://src.fedoraproject.org/rpms/dia-optics.git /var/lib/mock/f40-build-2343740-59881/root/chroot_tmpdir/scmroot/dia-optics
Cloning into '/var/lib/mock/f40-build-2343740-59881/root/chroot_tmpdir/scmroot/dia-optics'...
$ git fetch origin 730d722832fdb9cd94c285f9a41a4a5d1325a8fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dia-optics
 * [new ref]         730d722832fdb9cd94c285f9a41a4a5d1325a8fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 730d722 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild