OK, latest draft is up at<div><a href="http://wiki.openstreetmap.org/w/index.php?title=Proposed_features/Tag:amenity%3Dtoilets">http://wiki.openstreetmap.org/w/index.php?title=Proposed_features/Tag:amenity%3Dtoilets</a></div>

<div>It involves the discouraged ; operator, though perhaps in an acceptable use case.</div>