Consequence of #665230: allow distributing view to use any arguments introduces a regression.

In 6--1 you select one or more nodequeues and one or more types, and the Retriever runs the view for each combination. This is arguably not the ideal way to do it, as you're calling views.get TYPESxQUEUES times.

The 6--2 branch calls the view only once. Nodequeue supports a multi-valued argument (eg, '1,2') but the node type argument does not.

So we either need to:

a. get Views patched to provide this feature
b. supply our own version of this argument with a custom handler
c. have the content retriever know that some arguments won't take a multiple value, and do the old thing of running the view multiple times

I prefer a, would be okay with b as an interim, and dislike c.

I'm filing this so it's known (and so I can point to it in the readme file), though I don't have time to fix this. As there are only 40 users of the module currently, I don't think it's a huge deal. Perhaps someone will provide a patch? *very cheeky grin*