Author Search doesn't work correctly

[jonoff]

When searching by author, if there is a '-' in the username, everything after it is ignored and so if you search for posts by "orange-juice",
it'll return posts from any user starting with "orange" so "orange-peel", "orange-red" etc. Perhaps the hyphen is acting as a comment in the query?

[gurnec]

It's being treated as a space—every author with either whole word in the name is being returned.

This is a known issue with Pushshift's new backend (scroll down to the bugs section). It's something that can only be properly fixed in Pushshift which I've no control over, and nobody knows when/if it will be fixed there I'm afraid.