From a bug report, putting on a helm of opposite
alignment wipes out divine protection (regardless of which god originally
bestored it) but leaves piety level towards the old god in place for the
new one. Reset alignment record to 0 when changing alignment type. Yes,
that means that the helm can now be used to clear a negative alignment,
which I think is in keeping with having subtle positive uses for bad items.
Permanent alignment change did try to tweak alignment record, but
I'm not sure that it worked as intended. Lawfuls changing away from law
got a bonus for their new alignment, neutrals retained their old record,
and chaotics changing away from chaos took a penalty to their record, all
without regard to what the new alignment became. The magnitude of the
bonus or penalty was half the record limit (which gradually increases with
turn count) so could be very big, but I don't think it made much sense.
Reset alignment record to 0 for permanent conversion same as for temporary
conversion. It's simpler and reflects the fact that you haven't yet done
anything to bolster or weaken your new alignment.
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