Do Raid ID Lock Warnings Exist in Classic?

In more modern WoW, if you were to enter a raid ID that was locked to some specific bosses, you would get a warning popup with details and the ability to Accept or Decline/leave the group.

Does this exist in Classic? E.G. if you join a Molten Core trash run and the Raid Leader’s ID had killed Lucifron, are you instantly locked to that ID the second you zone in?

Its how it was before. We had someone try to join us who had already done some stuff and he just couldn’t enter the raid.

So if you are unlocked just assume you’re gonna get screwed.