The autocomplete algo seems to behaving weirdly since the 9.2 update where it was re-enabled.
For instance, a channel has the "Concern" emote from 7tv, but also the BTTV Global Emote "ConcernDoge"
If you write "conc" and tab, it will complete wiht ConcernDoge, which is not only not a 7tv option, but I would say a "worse" result since Concern would be the closest alphabetical match.
It used to be that if you had the following Emotes, as an example: "Concern", "ConcernFroge", "ConcernFroggo"... typing "concer" would default to "Concern"
And further on, if you typed concernf, it would complete with ConcernFroge, the closest alphabetical match.
Something in the sorting seems to not be behaving as before, and I am unsure if this is intended.