fix reserve_sat in local_config. see #6896

electrum/lnpeer.py

@@ -498,15 +498,17 @@ class Peer(Logger):
             static_remotekey = bfh(wallet.get_public_key(addr))
         else:
             static_remotekey = None
+        dust_limit_sat = bitcoin.DUST_LIMIT_DEFAULT_SAT_LEGACY
+        reserve_sat = max(funding_sat // 100, dust_limit_sat)
         local_config = LocalConfig.from_seed(
             channel_seed=channel_seed,
             static_remotekey=static_remotekey,
             to_self_delay=self.network.config.get('lightning_to_self_delay', 7 * 144),
-            dust_limit_sat=bitcoin.DUST_LIMIT_DEFAULT_SAT_LEGACY,
+            dust_limit_sat=dust_limit_sat,
             max_htlc_value_in_flight_msat=funding_sat * 1000,
             max_accepted_htlcs=5,
             initial_msat=initial_msat,
-            reserve_sat=funding_sat // 100,
+            reserve_sat=reserve_sat,
             funding_locked_received=False,
             was_announced=False,
             current_commitment_signature=None,