json: cannot unmarshal number -1 into Go struct field GetBlockVerboseResult.confirmations of type uint64

[andrewshvv]

@davecgh I have two bitcoind nodes in regtest mode, both connecting with each other locally. I am using rpcclient to get the information about block with GetBlockVerbose command.

I caused chain reorganisation by removing the data directory and restarting one of the nodes, this caused bitcoind to return -1 in confirmation number, which caused GetBlockVerbose fail with json: cannot unmarshal number -1 into Go struct field GetBlockVerboseResult.confirmations of type uint64.

Do you think that we could change uint64 to int64, to avoid such error, so that I could handle chain reorganisation properly in my service?