From e3025b3d7bbdc0d1aba258ed19d7d5c31bfb834e Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Fri, 19 Mar 2021 06:40:49 +0100
Subject: [PATCH] lnpeer: send update_fee if channel was never used (workaround
 eclair issue 1730)

---
 electrum/lnpeer.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/electrum/lnpeer.py b/electrum/lnpeer.py
index 59ee44513..94c3b282b 100644
--- a/electrum/lnpeer.py
+++ b/electrum/lnpeer.py
@@ -1645,6 +1645,11 @@ class Peer(Logger):
             self.logger.info("FEES HAVE FALLEN")
         elif feerate_per_kw > chan_fee * 2:
             self.logger.info("FEES HAVE RISEN")
+        elif chan.get_oldest_unrevoked_ctn(REMOTE) == 0:
+            # workaround eclair issue https://github.com/ACINQ/eclair/issues/1730
+            self.logger.info("updating fee to bump remote ctn")
+            if feerate_per_kw == chan_fee:
+                feerate_per_kw += 1
         else:
             return
         self.logger.info(f"(chan: {chan.get_id_for_log()}) current pending feerate {chan_fee}. "