[OpenSIPS-Devel] [OpenSIPS/opensips] 55fe15: Fix locking when flushing state to DB

[Bogdan Andrei IANCU]

  Branch: refs/heads/2.4
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 55fe1546b02f6e5eddc976fb13846063a8131bac
      https://github.com/OpenSIPS/opensips/commit/55fe1546b02f6e5eddc976fb13846063a8131bac
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2019-12-23 (Mon, 23 Dec 2019)

  Changed paths:
    M modules/dispatcher/dispatch.c

  Log Message:
  -----------
  Fix locking when flushing state to DB

Indeed there was no data locking when the flushing the destination's state to DB.
Closes #1911

(cherry picked from commit 43c7d916d8a807d00021818f1a120284cb08b50f)