Port 10696
[*] Ported changes: fixed JSON output for the mempool check command now when specifying a valid hash, but if the datum is not found either in mempool or in the chains, then the find field is false.
[*] Ported changes: fixed JSON output for the mempool check command now when specifying a valid hash, but if the datum is not found either in mempool or in the chains, then the find field is false.