[dovecot/core] 614f5b: auth: Do not use AUTH_SUBSYS_MECH in logging when ...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 614f5b6febaf3c825f9200ab3b62d9d047197b0e
      https://github.com/dovecot/core/commit/614f5b6febaf3c825f9200ab3b62d9d047197b0e
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2017-05-09 (Tue, 09 May 2017)

  Changed paths:
    M src/auth/auth-request.c

  Log Message:
  -----------
  auth: Do not use AUTH_SUBSYS_MECH in logging when request->mech is NULL

This can happen when a lookup is done instead of authentication.

Fixes auth: Panic: file auth-request.c: line 2560 (get_log_prefix): assertion failed: (auth_request->mech != NULL)