f docs

Author: TheBlueMatt

lightning/src/chain/channelmonitor.rs

@@ -1847,7 +1847,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
 
 	/// Gets the set of outbound HTLCs which are pending resolution in this channel or which were
 	/// resolved with a preimage from our counterparty.
+	///
 	/// This is used to reconstruct pending outbound payments on restart in the ChannelManager.
+	///
+	/// Currently, the preimage is unused, however if it is present in the relevant internal state
+	/// an HTLC is always included even if it has been resolved.
 	pub(crate) fn get_pending_or_resolved_outbound_htlcs(&self) -> HashMap<HTLCSource, (HTLCOutputInCommitment, Option<PaymentPreimage>)> {
 		let us = self.inner.lock().unwrap();
 		// We're only concerned with the confirmation count of HTLC transactions, and don't