exactly what it says. I typically shoot for the freedom ending, then getting the other ending (usually maid) is next. then from there, i can't seem to get out of being a maid to go to pony and finally cogetator.

Cognitor can also be reverted after completion since it doesnt require permalocking. just tell the home assistant you want to stop.
For reverting permalocked Pony and Maid you have to build the Hourglass in your Home and use it, losing all Items you currently carry.

EDIT: note that i read here that the hourglass is currently broken (disappears without removing your gear). but it works in the previous version.