Board Thread:Darwin/@comment-1387259-20131206032624/@comment-5275700-20131206225509

Thanks for pointing these out! Both are known to us and are scheduled to be fixed soon.

For the Default Sort option, note that the VisualEditor category tool (found the in the Page Settings menu) has an option there to set the default sort key. When there's a category set via the magic word in wikitext, it's acknowledged there and will remain in effect. The bug is just that it gets changed to "null" upon save in the wikitext.