glib-pacrunner crashed on PAC file - proxy settingy and environment settings remain unset

# lsb_release -rd
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04

$ LANG=C apt-cache policy glib-networking
glib-networking:
  Installed: 2.54.1-2
  Candidate: 2.54.1-2
  Version table:
 *** 2.54.1-2 500
        500 http://cz.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status

Expected behavoir:
Setting "Proxy Automatic" or "Proxy Automatic with PAC file URL" in Network manager should result in setting HTTP (and others) proxy for GNOME and environment variables for terminal applications.

What happened:
When I set network manager for using Automatic settings
(Automatic proxy settings with PAC file URL or without URL).

glib-pacrunner is crashing every time i reconnect network interface to LAN or WiFi with PAC

It is probably the same bug reported a repaired HERE:
https://codereview.qt-project.org/#/c/200463/

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: glib-networking-services 2.54.1-2
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.8-0ubuntu6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 12 14:39:47 2018
InstallationDate: Installed on 2018-01-06 (5 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
SourcePackage: glib-networking
UpgradeStatus: Upgraded to bionic on 2018-01-12 (0 days ago)