Fix issue with failing GetAddressGroupings with Private Spends #730
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Fixes #723
PR intention
GetAddressGroupings()
inwallet/wallet.cpp
is causing a segfault if the wallet contains Zerocoin or Sigma spends. The issue is it expects each input of the transaction it's looking at to be associated with an address, spend inputs are not.Code changes brief
Avoid the code block that deals with inputs entirely by checking if the overall tx is a spend. This is sufficient as spends cannot have non-spend inputs.