$ git clone -n https://src.fedoraproject.org/rpms/rust-rustfft.git /var/lib/mock/f40-build-2101612-50512/root/chroot_tmpdir/scmroot/rust-rustfft
Cloning into '/var/lib/mock/f40-build-2101612-50512/root/chroot_tmpdir/scmroot/rust-rustfft'...
$ git fetch origin 01ee3c72af759505ea02453cc42996abfd20d018:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rustfft
 * [new ref]         01ee3c72af759505ea02453cc42996abfd20d018 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01ee3c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild