Description of problem: segfault at 8 ip 00007ff63ed6bed1 sp 00007ffe65674060 error 4 in libpython3.6m.so.1.0[7ff63ec65000+2c3000]

Version-Release number of selected component (if applicable):
[root@master ~]# cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.0 Beta (Ootpa)
[root@master ~]# rpm -q dnf
dnf-4.0.9-1.el8.noarch

How reproducible: 

Steps to Reproduce:
1. Happened to check dmesg and found the above segfault.

Actual results:
1. dmesg lists the below message.
[Wed Dec  5 15:13:37 2018] dnf[16296]: segfault at 8 ip 00007ff63ed6bed1 sp 00007ffe65674060 error 4 in libpython3.6m.so.1.0[7ff63ec65000+2c3000]

2./var/log/dnf.log displays the below message.

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 64, in main
    return _main(base, args, cli_class, option_parser_class)
  File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 99, in _main
    return cli_run(cli, base)
  File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 115, in cli_run
    cli.run()
  File "/usr/lib/python3.6/site-packages/dnf/cli/cli.py", line 1100, in run
    return self.command.run()
  File "/usr/lib/python3.6/site-packages/dnf/cli/commands/module.py", line 270, in run
    self.subcmd.run_on_module()
  File "/usr/lib/python3.6/site-packages/dnf/cli/commands/module.py", line 171, in run_on_module
    raise e
  File "/usr/lib/python3.6/site-packages/dnf/cli/commands/module.py", line 167, in run_on_module
    self.module_base.install(self.opts.module_spec, self.base.conf.strict)
  File "/usr/lib/python3.6/site-packages/dnf/module/module_base.py", line 123, in install
    module_debsolv_errors=solver_errors)
dnf.exceptions.MarkingErrors: Problems in request:
missing groups or modules: python-nss
2018-12-05T07:20:50Z CRITICAL Error: Problems in request:

Expected results:
Segfault issues should be fixed.

Additional info: Attaching the logs for reference