lnsweep: lnwatcher needs to keep_waiting for pending hold_invoice #10318
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SomberNight
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Nov 28, 2025
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If RHASH is in lnworker.dont_settle_htlcs, we should not reveal the preimage. But also, we should not disregard the htlc either. E.g. during a JIT channel open, payment going A->B->C, C would release the preimage to B (lsp) to cover the costs of the JIT channel-open. If the upstream A->B channel gets force-closed, B should only pull the HTLC's funds if he is sure he can forward them to C. lnwatcher needs to keep watching (i.e. wait) until the RHASH gets removed from lnworker.dont_settle_htlcs, or until the CLTV of the HTLC expires.
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If RHASH is in lnworker.dont_settle_htlcs, we should not reveal
the preimage. But also, we should not disregard the htlc either.
lnwatcher needs to keep waiting until either the user cancels/settles
the hold invoice, or until the hold_invoice's CLTV expires.
TODO: I need to write a test for this!