Description of problem:
I ran `sudo dnf list extras`.

Version-Release number of selected component:
dnf-3.5.1-1.fc29

Additional info:
reporter:       libreport-2.9.5
cmdline:        /usr/bin/python3 /usr/bin/dnf list extras
crash_function: __init__
exception_type: RuntimeError
executable:     /usr/bin/dnf
interpreter:    python3-3.7.0-9.fc29.x86_64
kernel:         4.18.5-300.fc29.x86_64
runlevel:       N 5
type:           Python3
uid:            0

Truncated backtrace:
transaction.py:729:__init__:RuntimeError: C++ std::exception: Step: UNIQUE constraint failed: comps_environment_group.environment_id, comps_environment_group.groupid in

        INSERT INTO
            comps_environment_group (
                environment_id,
                groupid,
                installed,
                group_type
            )
        VALUES
            (43799, 'base-x', 1, 4)
    

Traceback (most recent call last):
  File "/usr/bin/dnf", line 58, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 179, in user_main
    errcode = main(args)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 64, in main
    return _main(base, args, cli_class, option_parser_class)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 99, in _main
    return cli_run(cli, base)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 115, in cli_run
    cli.run()
  File "/usr/lib/python3.7/site-packages/dnf/cli/cli.py", line 1049, in run
    return self.command.run()
  File "/usr/lib/python3.7/site-packages/dnf/cli/commands/__init__.py", line 232, in run
    self.opts.packages)
  File "/usr/lib/python3.7/site-packages/dnf/cli/cli.py", line 403, in output_packages
    columns = _list_cmd_calc_columns(self.output, ypl)
  File "/usr/lib/python3.7/site-packages/dnf/cli/cli.py", line 105, in _list_cmd_calc_columns
    _add_pkg_simple_list_lens(data, pkg)
  File "/usr/lib/python3.7/site-packages/dnf/cli/cli.py", line 93, in _add_pkg_simple_list_lens
    rid = len(pkg._from_repo)
  File "/usr/lib/python3.7/site-packages/dnf/package.py", line 84, in _from_repo
    pkgrepo = self.base.history.repo(self)
  File "/usr/lib/python3.7/site-packages/dnf/db/history.py", line 362, in repo
    return self.swdb.getRPMRepo(str(pkg))
  File "/usr/lib/python3.7/site-packages/dnf/db/history.py", line 291, in swdb
    self._swdb = libdnf.transaction.Swdb(self.dbpath)
  File "/usr/lib64/python3.7/site-packages/libdnf/transaction.py", line 729, in __init__
    this = _transaction.new_Swdb(*args)
RuntimeError: C++ std::exception: Step: UNIQUE constraint failed: comps_environment_group.environment_id, comps_environment_group.groupid in

        INSERT INTO
            comps_environment_group (
                environment_id,
                groupid,
                installed,
                group_type
            )
        VALUES
            (43799, 'base-x', 1, 4)
    

Local variables in innermost frame:
self: <libdnf.transaction.Swdb;  >
args: ('/var/lib/dnf/history.sqlite',)