[dovecot/core] 5caf68: imap: Fix pipelining commands with SEARCH

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 5caf685b62a30b1f935b80a3f9f1bdcefb63a38c
      https://github.com/dovecot/core/commit/5caf685b62a30b1f935b80a3f9f1bdcefb63a38c
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-06-12 (Mon, 12 Jun 2017)

  Changed paths:
    M src/imap/imap-search.c

  Log Message:
  -----------
  imap: Fix pipelining commands with SEARCH

If the SEARCH wasn't a long-running one, it ends with going to sync.
The command state shouldn't then be changed to _WAIT_EXTERNAL.