[OpenSIPS-Devel] [OpenSIPS/opensips] c82972: dialog: fix mem leak generated by missing replies

[Răzvan Crainea]

  Branch: refs/heads/2.4
  Home:   https://github.com/OpenSIPS/opensips
  Commit: c82972d78c799670a708a8b7ba783431c01d7d4b
      https://github.com/OpenSIPS/opensips/commit/c82972d78c799670a708a8b7ba783431c01d7d4b
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2019-04-15 (Mon, 15 Apr 2019)

  Changed paths:
    M modules/dialog/dlg_handlers.c

  Log Message:
  -----------
  dialog: fix mem leak generated by missing replies

When cseq was to change generated replies, if those replies were never
generated (due to missing replies from UAC), the callback was leaking.

(cherry picked from commit 13bceaf647b2cd885f516bb61e2dd04da964d1a4)