anchor.diff:      // - Value 4 means that is loading from storage using protocol v2 (so, includes always operations)
       // - Value 5 means that is loading from storage using TAccountPreviousBlockInfo
       load_protocol_version := CT_PROTOCOL_1;
  +    LLoadPreviousUpdatedBlocks := False;
       if (soob in [0,2]) then FIsOnlyOperationBlock:=false
       else if (soob in [1,3]) then FIsOnlyOperationBlock:=true
       else if (soob in [4]) then begin
  
positive.code:     if not Result then begin
        exit;
      end;
      If load_protocol_version>=CT_PROTOCOL_3 then begin
        Result := FPreviousUpdatedBlocks.LoadFromStream(Stream);
        If Not Result then begin
          errors := 'Invalid PreviousUpdatedBlock stream';
  
negative.code:   soob : Byte;
    raw: TRawBytes;
    load_protocol_version : Word;
    LLoadPreviousUpdatedBlocks : Boolean;
  begin
    Lock;
    Try
  