```
channeld WARNING: Bad update_fail_malformed_htlc failure code 4103
```
Warren Togami reports this happening with Bitrefill on every reconnect,
so it's clearly something LND does.
(4103 is TEMPORARY_CHANNEL_FAILURE, which does not belong in update_fail_malformed_htlc).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: We allow update_fail_malformed_htlc with invalid error codes (LND?)