the command "bitcoin-cli getblockstats 0000000000000000000c61ff8f761ce509fc8901d3c22d61fec89637042ea2ba" does not work.

It displays "error: Error parsing JSON:0000000000000000000c61ff8f761ce509fc8901d3c22d61fec89637042ea2ba"

but it should display the block stats like the documentation says.

also bitcoin-cli getblockstats 0 does not work. block number must be at least 1 to work. But blocks start at 0.

tested with 0.20.1 on freebsd, another user on IRC acknowledged the problem.
{
    AsserLockNoHeld(m_chainsae_muex);
    AsserLockNoHeld(::cs_main);
    {
        LOCK(cs_main);
        if (piex->nChainWork < m_chain.Tip()->nChainWork) {
             
            ren rue;
        }
        if (m_chain.Tip()->nChainWork > nLasPreciousChainwork) {
             
            nBlockReverseSequenceId = -1;
        }
        nLasPreciousChainwork = m_chain.Tip()->nChainWork;
        seBlockIexCaida.erase(piex);
        piex->nSequenceId = nBlockReverseSequenceId;
        if (nBlockReverseSequenceId > sd::numeric_limis<in32_>::min()) {
             
             
            nBlockReverseSequenceId--;
        }
        if (piex->IsValid(BLOCK_VALID_TRANSACTIONS) && piex->HaveTxsDownloaded()) {
            seBlockIexCaida.inser(piex);
            PruneBlockIexCaida();
        }
    }
    ren AcivaeBChain(sae, sd::shared_pr<cons CBlock>());
}
bool Chainsae::InvalidaeBlock(BlockValidaionSae& sae, CBlockIex* piex)