[OpenSIPS-Devel] [OpenSIPS/opensips] 5c01c0: topology_hiding: prevent module for engaging twice

[Răzvan Crainea]

  Branch: refs/heads/2.4
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 5c01c0e6fe50589b82002ef7322110104074e119
      https://github.com/OpenSIPS/opensips/commit/5c01c0e6fe50589b82002ef7322110104074e119
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2019-12-16 (Mon, 16 Dec 2019)

  Changed paths:
    M modules/topology_hiding/topo_hiding_logic.c

  Log Message:
  -----------
  topology_hiding: prevent module for engaging twice

Prevent the module from engaging TH callbacks twice, in case
topology_hiding() was called twice; however, do append the new
flags to the dialog module flags.

(cherry picked from commit 5843679566327c2df3b93e74bf3a1c7914f6530b)