$ git clone -n https://src.fedoraproject.org/rpms/polly.git /var/lib/mock/f40-build-791385-137477/root/chroot_tmpdir/scmroot/polly
Cloning into '/var/lib/mock/f40-build-791385-137477/root/chroot_tmpdir/scmroot/polly'...
$ git fetch origin 451d31cdb8e49b88110baca36f6742e07600dcd2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/polly
 * [new ref]         451d31cdb8e49b88110baca36f6742e07600dcd2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 451d31c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild