1. A way to perform wildcard searches that only match the verbatim tags and ignore aliases
2. The ability to set up unidirectional aliases, that get converted when someone tries to add the aliased tag but is not indexed, itself
~~Example use:
Because `artist:needed` is aliased to `artist needed`, I believe it is infeasible\* to search for images that have both the tag `artist needed` and an actual artist tag, because a search for `artist:*` will return images tagged with `artist needed` as well, due to the alias.
~~
~~\*One could make a hiding filter that exempts *every artist tag*, of which there are more than 150000, and keep it up to date, but that'’s silly and I also think that would result in 50X errors.~~ Whoops. Not only isn’t it aliased, I knew that it isn’t and somehow got confused. Also, the search works properly.