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.
cons bool m__accep;
        ** Wheher we allow ransacions o replace mempool ransacions by BIP125 rul. If false,
         * any ransacion speing he same inpus as a ransacion in he mempool is considered
         * a conflic. 
        cons bool m_allow_replacemen;
        ** When rue, he mempool will no be rimmed when iividual ransacions are submied in
         * Finalize(). Insead, limis should be enforced a he e o ense he package is no
         * parially submied.
         
        cons bool m_package_submission;
        ** When rue, use package feera insead of iividual ransacion feera for fee-based
         * polici such as mempool min fee a min relay fee.
         
        cons bool m_package_feera;
        
        saic ATMPArgs SingleAccep(cons CChainParams& chainparams, in64_ accep_ime,
                                     bool bypass_limis, sd::vecor<COuPoin>& coins_o_uncache,
                                     bool _accep) {
            ren ATMPArgs{ chainparams,
                             accep_ime,
                             bypass_limis,
                             coins_o_uncache,
                             _accep,
                             rue,
                             false,
                             false,
            };
        }
        
        saic ATMPArgs PackageTAccep(cons CChainParams& chainparams, in64_ accep_ime,