From: Matt Corallo <git@bluematt.me>
Date: Fri, 16 Feb 2024 19:26:22 +0000 (+0000)
Subject: Fix `Route` serialization round-trip
X-Git-Tag: v0.0.123-beta~63^2~1
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;ds=sidebyside;h=4026d4efd1eb92c47fe567eee6a9cd8824dc1cf2;hp=4026d4efd1eb92c47fe567eee6a9cd8824dc1cf2;p=rust-lightning

Fix `Route` serialization round-trip

When the `max_total_routing_fee_msat` parameter was added to
`RouteParameters`, the serialization used `map` to get the max fee,
accidentally writing an `Option<Option<u64>>`, but then read it as
an `Option<u64>`. Thus, any `Route`s with a `route_params` written
will fail to be read back.

Luckily, this is an incredibly rarely-used bit of code, so only one
user managed to hit it.
---