Description of problem:

Once I did 'yum-deprecated makecache' to get past bug 1225282:

3278 YUMDB records found, 0 migrated, 3278 skipped/preserved
Migrating groups data...
Yum command has been deprecated, use dnf instead.
See 'man dnf' and 'man yum2dnf' for more information.

Traceback (most recent call last):
  File "/usr/bin/dnf-2", line 36, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 185, in user_main
    errcode = main(args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 84, in main
    return _main(base, args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 134, in _main
    cli.run()
  File "/usr/lib/python2.7/site-packages/dnf/cli/cli.py", line 1077, in run
    return self.command.run(self.base.extcmds)
  File "/usr/lib/python2.7/site-packages/dnf-plugins/migrate.py", line 126, in run
    self.migrate_groups()
  File "/usr/lib/python2.7/site-packages/dnf-plugins/migrate.py", line 250, in migrate_groups
    group_cmd._mark_install(installed)
  File "/usr/lib/python2.7/site-packages/dnf/cli/commands/group.py", line 236, in _mark_install
    res.environments, types)
  File "/usr/lib/python2.7/site-packages/dnf/comps.py", line 86, in install_or_skip
    count += install_fnc(grp, types, None)
TypeError: unsupported operand type(s) for +=: 'int' and 'TransactionBunch'

Version-Release number of selected component (if applicable):

python-dnf-plugins-extras-migrate-0.0.8-1.fc22.noarch

How reproducible:

100%

Steps to Reproduce:
1. dnf-2 migrate

Actual results:

See above.

Expected results:

Success