f switch to debug assert

Author: valentinewallace

lightning/src/ln/channelmanager.rs

@@ -3918,14 +3918,16 @@ where
 											htlcs.push(claimable_htlc);
 											let amount_msat = htlcs.iter().map(|htlc| htlc.value).sum();
 											htlcs.iter_mut().for_each(|htlc| htlc.total_value_received = Some(amount_msat));
+											let counterparty_skimmed_fee_msat = htlcs.iter()
+												.map(|htlc| htlc.counterparty_skimmed_fee_msat.unwrap_or(0)).sum();
+											debug_assert!(total_value.saturating_sub(amount_msat) <=
+												counterparty_skimmed_fee_msat);
 											new_events.push_back((events::Event::PaymentClaimable {
 												receiver_node_id: Some(receiver_node_id),
 												payment_hash,
 												purpose: $purpose,
 												amount_msat,
-												counterparty_skimmed_fee_msat:
-													cmp::max(total_value.saturating_sub(amount_msat), htlcs.iter()
-														.map(|htlc| htlc.counterparty_skimmed_fee_msat.unwrap_or(0)).sum()),
+												counterparty_skimmed_fee_msat,
 												via_channel_id: Some(prev_channel_id),
 												via_user_channel_id: Some(prev_user_channel_id),
 												claim_deadline: Some(earliest_expiry - HTLC_FAIL_BACK_BUFFER),