This solution works correctly, i.e. it does not pose any discernible
problems to MAN's functionality after returning back from a program.
The only unpleasant side-effect is that you can see "MAN" command typed
onto a screen, and it takes a short (but noticeable) while to disappear.
Is there a way to avoid that (so that return to a file manager is
executed in a truly "programmatic" way)?