[dovecot/core] 104a24: lib-mail: Fixed istream-header-filter calling call...

[GitHub]

  Branch: refs/heads/master-2.2
  Home:   https://github.com/dovecot/core
  Commit: 104a244966641e13bb18b6a8006180702c88d518
      https://github.com/dovecot/core/commit/104a244966641e13bb18b6a8006180702c88d518
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-05-19 (Thu, 19 May 2016)

  Changed paths:
    M src/lib-mail/istream-header-filter.c
    M src/lib-mail/test-istream-header-filter.c

  Log Message:
  -----------
  lib-mail: Fixed istream-header-filter calling callback(hdr=NULL)

It should do it on the following parsings as well if there were any
callbacks that were called, or if the hdr==NULL callback added any
headers. This is important because the hdr==NULL call could do some
cleanups.