As title says. This hasn't been an issue until now, when the quest https://en.uesp.net/wiki/Tamriel_Rebuilt:The_Destroyer%27s_Ringlet from Foul Murder uses one of these globals to trigger a quest stage. Meaning, the players can inadvertently release the ghost of Savile Theras by being a bit too quick and not waiting until the portcullis in the Fane of the Ancestors closes. If they enter the vault while it's still up, the global value is still set to 1, which opens the door to Savile Theras' vault.