Description of problem:
========================
Dnf/yum rollback fails with below traceback

# yum history undo <ID>
Traceback (most recent call last):
File "/bin/yum", line 58, in <module>
main.user_main(sys.argv[1:], exit_code=True)
File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 201, in user_main
errcode = main(args)
File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 67, in main
return _main(base, args, cli_class, option_parser_class)
File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 106, in _main
return cli_run(cli, base)
File "/usr/lib/python3.6/site-packages/dnf/cli/main.py", line 122, in cli_run
cli.run()
File "/usr/lib/python3.6/site-packages/dnf/cli/cli.py", line 1055, in run
return self.command.run()
File "/usr/lib/python3.6/site-packages/dnf/cli/commands/history.py", line 342, in run
self._hcmd_undo(tids)
File "/usr/lib/python3.6/site-packages/dnf/cli/commands/history.py", line 190, in _hcmd_undo
self._revert_transaction(old)
File "/usr/lib/python3.6/site-packages/dnf/cli/commands/history.py", line 233, in _revert_transaction
ti["action"] = action_map[ti["action"]]
KeyError: 'Reason Change'


Version-Release number of selected component (if applicable):
=============================================
Affected versions
python3-dnf-4.4.2-11.el8.noarch
python3-dnf-4.7.0-4.el8.noarch

Actual results:
================
Failed with KeyError: 'Reason Change' error

Expected results:
=================
Downgrade should be successful