What happened to the "exact word" search feature?

[SandwichPony]

I don't know when this happened but the feature seems to be missing for me for some reason. Not sure if it's a bug or something but it was really helpful for finding wallpapers where specific keywords would sort it immediately.

[Tim]

It only appears once you add a space character to the search because it makes no difference if you are only searching for a single word.