Indicate to claim_funds_internal that we're replaying on startup

While we'd previously avoided this, this is sadly now required in
the next commit.

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -5492,7 +5492,7 @@ where
 	}
 
 	fn claim_funds_internal(&self, source: HTLCSource, payment_preimage: PaymentPreimage,
-		forwarded_htlc_value_msat: Option<u64>, from_onchain: bool,
+		forwarded_htlc_value_msat: Option<u64>, from_onchain: bool, startup_replay: bool,
 		next_channel_counterparty_node_id: Option<PublicKey>, next_channel_outpoint: OutPoint
 	) {
 		match source {
@@ -6409,7 +6409,7 @@ where
 				hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got a message for a channel from the wrong node! No such channel for the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id))
 			}
 		};
-		self.claim_funds_internal(htlc_source, msg.payment_preimage.clone(), Some(forwarded_htlc_value), false, Some(*counterparty_node_id), funding_txo);
+		self.claim_funds_internal(htlc_source, msg.payment_preimage.clone(), Some(forwarded_htlc_value), false, false, Some(*counterparty_node_id), funding_txo);
 		Ok(())
 	}
 
@@ -6862,7 +6862,7 @@ where
 					MonitorEvent::HTLCEvent(htlc_update) => {
 						if let Some(preimage) = htlc_update.payment_preimage {
 							log_trace!(self.logger, "Claiming HTLC with preimage {} from our monitor", preimage);
-							self.claim_funds_internal(htlc_update.source, preimage, htlc_update.htlc_value_satoshis.map(|v| v * 1000), true, counterparty_node_id, funding_outpoint);
+							self.claim_funds_internal(htlc_update.source, preimage, htlc_update.htlc_value_satoshis.map(|v| v * 1000), true, false, counterparty_node_id, funding_outpoint);
 						} else {
 							log_trace!(self.logger, "Failing HTLC with hash {} from our monitor", &htlc_update.payment_hash);
 							let receiver = HTLCDestination::NextHopChannel { node_id: counterparty_node_id, channel_id: funding_outpoint.to_channel_id() };
@@ -10057,7 +10057,7 @@ where
 			// don't remember in the `ChannelMonitor` where we got a preimage from, but if the
 			// channel is closed we just assume that it probably came from an on-chain claim.
 			channel_manager.claim_funds_internal(source, preimage, Some(downstream_value),
-				downstream_closed, downstream_node_id, downstream_funding);
+				downstream_closed, true, downstream_node_id, downstream_funding);
 		}
 
 		//TODO: Broadcast channel update for closed channels, but only after we've made a