[dovecot/core] bac642: lib: Fixed istream-chain when it has multiple "pre...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: bac6427712674cd4b6146ef51f90c14eb9603db6
      https://github.com/dovecot/core/commit/bac6427712674cd4b6146ef51f90c14eb9603db6
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-09-21 (Wed, 21 Sep 2016)

  Changed paths:
    M src/lib/istream-chain.c
    M src/lib/test-istream-chain.c

  Log Message:
  -----------
  lib: Fixed istream-chain when it has multiple "previous streams".

Fixes assert:
Panic: file istream-chain.c: line 223 (i_stream_chain_read): assertion failed: (cur_data_pos == data_size)

Unit test for it by Stephan Bosch.