[OpenSIPS-Devel] [OpenSIPS/opensips] fd0e4b: dialog: fix a memory leak when using topology hiding

[Vlad Pătrașcu]

  Branch: refs/heads/3.1
  Home:   https://github.com/OpenSIPS/opensips
  Commit: fd0e4b7e4ae4853a27b6dcbf4a8b825aeae16b79
      https://github.com/OpenSIPS/opensips/commit/fd0e4b7e4ae4853a27b6dcbf4a8b825aeae16b79
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2020-12-17 (Thu, 17 Dec 2020)

  Changed paths:
    M modules/dialog/dlg_handlers.c

  Log Message:
  -----------
  dialog: fix a memory leak when using topology hiding

Credits to Anton Mosin for troubleshooting this.
Fixes #2346.