Note that this is a breaking change in Core's RPC -- if you add pegins
to createfundedpsbt then it won't do coin selection unless you provide
the additional new add_inputs option.
This Elements PR includes components of Core PR #17211, which since the
refactors to use effective value landed, no longer provides the right
error message when a user provides an unowned input from a wallet tx.
See https://github.com/bitcoin/bitcoin/pull/17211#pullrequestreview-528389011
This breaks a functional test which was included in this PR, but which
conveniently has been changed in the current version of the Core PR. I
fixed the behavior (commented, in SelectCoins) rather than updating the
test to the most recent version.
This PR introduces a `avoid_reuse` flag to the `getnewaddress` `sendtoaddress` `getbalance`
RPCs, which we've also added some asset-specific stuff. Since both changes have default
values they aren't individually breaking, but together they are since some existing
asset-related RPC workflows now require the user to jam a `False` in there to make
the new avoid-reuse stuff go away.
When the user doesn't specificy inputs, it makes sense to automatically select them. But when the user does specify inputs, we now fail if the amount is insufficient, unless addInputs is set to true.
