d01e6b8101
I don't understand what the "coins not used" comment meant here. It was added in the change away from the old config.WALLET_BATCH_RBF option (https://github.com/spesmilo/electrum/commit/ab14c3e1382c1af48baff73b790aecfbd069eb8a). The `coins` param *is used* in wallet.get_candidates_for_batching. Without setting that, the returned set of candidates was restricted to only base txs that had a large enough change output to cover *all* the newly added outputs. Instead, it is desirable to allow adding new inputs.