Year only publish dates probably should not count as 'valid'
More of a feature request than a bug I guess - but I've noticed that with the new year there's been a slew of books that were on-hold due to being unpublished (i.e. future publish date) have now been added to Wanted with a publish date of '2021'.
These are all speculative publish years and none of them have actually been published yet, I think it would probably be better if publish dates containing only a year counted the same as publish date being blank or future dated.