We were using `channel_hint` to temporarily tweak the graph inside of
a payment. However, these ad-hoc `channel_hints` are stickier than
their predecessors, in that they outlive the payment attempt itself,
and interfere with later ones.
Changelog-Changed: pay: Discarding an overly long or expensive route does not blocklist channels anymore.
Any file in this directory which is executable and whose name only
consists of alphanumeric characters, space, '.', '-' or '_' will be
automatically loaded when lightningd starts (unless suppressed with
commandline options).
f6d410d924