What if the protected contents is exactly the same as its own mask?

vvvRAW0vvv vvvTAGGED0vvv vvvMONO0vvv vvvRAW1vvv

What if the protected contents is the same as other's mask?

vvvRAW0vvv vvvTAGGED0vvv vvvMONO0vvv vvvRAW0vvv

What if the protected contents is a fake off-limits mask?

vvvRAW999vvv vvvTAGGED999vvv vvvMONO999vvv vvvRAW999vvv