Follow-up: Nitpick code of the new transaction.calc_common_sighash
Follow-up: Nitpick code of the new transaction.calc_common_sighash

I couldn't resist nitpicking some things.  Hopefully it's slightly more
resilient against programming errors now by using simple heuristics to
detect if the cached "common sighash" value maybe is wrong.

fyookball/electrum,fyookball/electrum,fyookball/electrum