SearchRawTransactions error interrupted btcd

[Yashiroo]

Hi there,

I am running btcd 0.12-beta and i was trying to look up transactions involving a specific address using the rpcclient function SearchRawTransactionsVerbose with the following signature:
SearchRawTransactionsVerbose(address,0,math.MaxInt64,true,false,filteraddrs)

I'm fairly certain that the MaxInt64 is the cause of this, but my issue is that it caused the daemon to stop running and i had to restart it, which is not good here.

I hope the bug report helps, let me know if any information is required.