Is there a way of knowing if the item has been added and then subsequently removed?

[marsrobertson]

tcr/contracts/LightGeneralizedTCR.sol

Lines 32 to 37 in 72e547e

	enum Status {
	Absent, // The item is not in the registry.
	Registered, // The item is in the registry.
	RegistrationRequested, // The item has a request to be added to the registry.
	ClearingRequested // The item has a request to be removed from the registry.
	}

It seems to me that Absent is not conclusive?