I tried a factory reset (back to 1.9.6) then did setup; was not able to change language until after the setup was complete (and the upgrade done to 2.0.0 R41166, 12.07.12).
Picked German and then added a book to the Shortlist.
Shelf name still shows as Shortlist.
DB Dump shows
INSERT INTO "Shelf" VALUES('2012-06-28T04:42:23Z','051b207e-882b-49eb-829a-a6e6bc80f6eb','Wishlist','2012-08-06T04:18:43Z','Wishlist','Custom','false','true','t
INSERT INTO "Shelf" VALUES('2012-08-23T04:10:21Z',NULL,'Shortlist','2012-08-23T04:10:21Z','Shortlist',NULL,'false','true','false');