Autocomplete moderator tags

We have a clearly-defined series of moderator tags that we use for various purposes. Although we don't have a huge list, it can be difficult to remember the exact format of the tag. For example, is it life-sciences, life-sci, life_sci etc.

It would be really helpful if the platform would autocomplete or offer suggestions for these tags when you're typing them in, based on the tags which have been applied before.

I think this could be useful for public tags as well so people all use the same one instead of getting several variations of the same thing.