Column Management Modal retains unapplied checkbox changes on Cancel

[rh-gvincent]

Go to the documentation page: https://www.patternfly.org/extensions/component-groups/column-management-modal

Click the Manage Columns button.

Uncheck all columns

Click the Cancel button (or the 'X' close icon).

Click the Manage Columns button again.

Actual Results: All the columns you unchecked in Step 3 are still unchecked, even though the changes were canceled and never applied

Expected Results: The modal should reset its state on close/cancel. Reopening the modal should show the original

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Jira Issue: PF-4266

[rh-gvincent]

Looking at the test, I noticed this:

it('should retain columns on cancel', () => {
  fireEvent.click(screen.getByText('Impact'));
  fireEvent.click(screen.getByText('Cancel'));

  expect(onClose).toHaveBeenCalled();
  // applyColumns should NOT be called on cancel
  expect(setColumns).not.toHaveBeenCalled();
});

Is this behavior intentional?

I would expect clicking Cancel (or closing the dialog) to discard any pending changes and restore the initial state. But maybe the original design was intentionally different?