[dovecot/core] 2c6a1c: lib-storage: Fix assert-crash on mailbox_copy/move...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 2c6a1ceeddee48ff682bbedaa2567d0429cd17c6
      https://github.com/dovecot/core/commit/2c6a1ceeddee48ff682bbedaa2567d0429cd17c6
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-01-15 (Sun, 15 Jan 2017)

  Changed paths:
    M src/lib-storage/mail-storage.c

  Log Message:
  -----------
  lib-storage: Fix assert-crash on mailbox_copy/move() failure

If mailbox_save_cancel() was being called outside mail_storage_copy()
it assert-crashed:

Panic: file mail-storage.c: line 2168 (mailbox_save_context_reset): assertion failed: (ctx->copying_via_save)