zen 1.2.3 -> 1.37

If you disable a category in admin, the disabled category name still appears in the meta keywords when you do a view source on the index page of the shop.

Small thing, but maybe could cause unnecessary visitors if you had a category that you used infrequently each year - eg. 'Tickets for xxx event' - or perhaps bad marks with Google for having a keyword(s) that doesn't relate to a product on your site.