[dovecot/core] db576e: mail-crypt-plugin: Set copy-hook only if save_vers...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: db576e4cd60abf23bf0c534204d49ddfa32ccd68
      https://github.com/dovecot/core/commit/db576e4cd60abf23bf0c534204d49ddfa32ccd68
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2017-05-15 (Mon, 15 May 2017)

  Changed paths:
    M src/plugins/mail-crypt/mail-crypt-plugin.c

  Log Message:
  -----------
  mail-crypt-plugin: Set copy-hook only if save_version > 0

Otherwise we might use it in read-only mode, too.