Reserved JSON Words in 2.0?

I know it says "there are no reserved field names" when I create a document, but I'm having trouble with "Vendor Name". I made a simple view without any if statements to emit one record per document:

function (doc, meta) {
emit(
[
'hi'
], {
'foo': 'bar'
});
}

If my document (testing::123) looks like this:

{
"click": "to edit",
"new in 2.0": "there are no reserved field names",
"Vendor Name": "There Might Be One"
}

I can see it in the Documents tab, but nothing is emitted from the view. If I change "Vendor Name" to "Vendor Names", 1 row is emitted from the view. Has anyone else run into this? Is there a list of reserved fields somewhere?

Thanks,
-Eric

PS I'm running Version: 2.0.0 enterprise edition (build-1976).