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digitalmars.D - Range.init does not imply Range.empty==true

I noticed that in some places in Phobos range-related code, there's an
assumption that the following code works:

	auto someRangeFunction(R)(R range) {
		R helperRange = range;
		helperRange = R.init;

Exercise for the reader: spot the bug.

Hint: what if R is an InputRangeObject?


Which is worse: ignorance or apathy? Who knows? Who cares? -- Erich Schubert
Dec 20 2012