[dovecot/core] f15376: imap: Fix assert when waiting for input on SEARCH/...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: f153764d47dcb3b500f65238ac531100a338b397
      https://github.com/dovecot/core/commit/f153764d47dcb3b500f65238ac531100a338b397
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2016-12-12 (Mon, 12 Dec 2016)

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

  Log Message:
  -----------
  imap: Fix assert when waiting for input on SEARCH/SORT

Set cmd->state to CLIENT_COMMAND_STATE_WAIT_EXTERNAL
because we are not expecting input or output.

Fixes Panic: file imap-client.c: line 854 (client_check_command_hangs): assertion failed: (client->io != NULL || (client->output_cmd_lock != NULL && client->output_cmd_lock != client->input_lock))