f clarify why we might not resume immediately

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -615,7 +615,9 @@ pub(crate) enum MonitorUpdateCompletionAction {
 		event: events::Event,
 		downstream_counterparty_and_funding_outpoint: Option<(PublicKey, OutPoint, RAAMonitorUpdateBlockingAction)>,
 	},
-	/// Indicates we should probably resume the operation of another channel.
+	/// Indicates we should immediately resume the operation of another channel, unless there is
+	/// some other reason why the channel is blocked. In practice this simply means immediately
+	/// removing the [`RAAMonitorUpdateBlockingAction`] provided from the blocking set.
 	///
 	/// This is usually generated when we've forwarded an HTLC and want to block the outbound edge
 	/// from completing a monitor update which removes the payment preimage until the inbound edge