$ git clone -n https://src.fedoraproject.org/rpms/rust-rustfft.git /var/lib/mock/f40-build-2327294-58851/root/chroot_tmpdir/scmroot/rust-rustfft
Cloning into '/var/lib/mock/f40-build-2327294-58851/root/chroot_tmpdir/scmroot/rust-rustfft'...
$ git fetch origin d209d024e467f569b84de38e0cbceeed519a0e95:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rustfft
 * [new ref]         d209d024e467f569b84de38e0cbceeed519a0e95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d209d02 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild