A flow that carves and then waits minutes on a settlement poll used to
commit the carve only after the whole flow resolved - an abort mid-wait
left burned inputs spendable locally and stranded the fresh outputs.
ensureExactAmount now reports a mutation-bearing carve through the new
FundOperationOptions.onCarve checkpoint the moment its outcome is known;
payWithBearers and transferBetweenMints thread it through.
Because the carve may now be committed before the flows' classification
rotates run, those rotations no longer rewrite carve.note in the result -
returned funds come back as a separate verified rotatedNote, so the
committed carve and the re-secured note can both be persisted. NWC's
payChangeset adapts to the rotatedNote field; its own commit timing is
unchanged (follow-up).
protom
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