"Hash of session info was not as expected" should be log_protocol_warn

Seeing

[warn] Hash of session info was not as expected.

on fast relays, both exits and non exits (ndnr1, DFRI0, DFRI2) several times today. First one spotted at Jun 14 00:26 CEST.

These are on Linux and FreeBSD, versions 0.2.5.4-alpha-dev and 0.2.5.2-alpha respectively.