P99 Wiki: Equipment, filter by era broken?

[Scoojitsu]

When I search for equipment on the wiki, I click 'pre-Kunark' items only but it still shows Kunark stuff.
Is it a known bug?
Is there a workaround?
Something I'm doing wrong?

Thank you

[BlackBellamy]

No it’s broken. Your best bet is to show all and then sort by zone and just ignore anything that’s associated with a non-classic zone.