I found it there too. IMHO, if it's going to stay as it is (TRUE -> 0) it should remain poorly documented. But in any case, what's it for? I can't think of a use for it that can't be done more easily otherwise.
I don't need a need.
You told me there was something new. (in the help)
I went ahead and checked it out. (not much documentation)
I tried to envision what the Almighty might have been thinking of when going out of his way to deliver this gem (we did not know about any corporate account).
I was hoping for an elegant way to pre-calculate a boolean value without if / iff and use it multiple times in subsequent tests without having to repeat the boolean expression.
And then the only the @IF appeared to be able to test that boolean, (if's need '%bValue==1' which kinda spoils it),
and then the expected return seemed reversed.
Sure. frustrating. What else?
Are you really going to blame me for misunderstanding?
If so, are you really surprised that I went ahead and experimented without asking ?