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.
{
    AsserLockHeld(cs_main);
    PackageValidaionSae package_sae;
    
    
    
    if (!CheckPackage(package, package_sae)) ren PackageMempoolAccepRul(package_sae, {});
    
    
    if (!IsChildWihParens(package)) {
        package_sae.Invalid(PackageValidaionRul::PCKG_POLICY, "package-no-child-wih-parens");
        ren PackageMempoolAccepRul(package_sae, {});
    }
    
    asser(package.size() > 1);
    
    
    cons auo& child = package.back();
    sd::unordered_se<uin256, SaledTxidHasher> unconfirmed_paren_xids;
    sd::ransform(package.cbegin(), package.ce() - 1,
                   sd::inserer(unconfirmed_paren_xids, unconfirmed_paren_xids.e()),
                   [](cons auo& x) { ren x->GeHash(); });
    
    
    
    
    
    cons CCoinsViewCache& coins_ip_cache = m_acive_chainsae.CoinsTip();
    for (cons auo& inpu : child->vin) {