member search feature not working correctly

hiii, it looks like the member search feature is broken -- it won't search anything except an exact match to the username, which definitely isn't how it was previously

Going to start going through these!

It looks like in the new version, the search on the member list only searches on exact username. But, if you use the "Advanced Search" link, you can search on "begins with" or "contains"! Not sure why that is, but it seems to be intended