Offer a little more sensible way to report no distinctive data

[Mark-H]

The problem is that if the series field is left blank on books which are not part of a series, then getRelated doesn't know what to do. Gives the message:

"Error collecting distinctive data from the resource to match against."

... rather than degrading to a custom message about not being part of a series or whatever.

http://forums.modx.com/thread/71009/getrelated-automatically-listing-related-resources-for-revolution?page=6#dis-post-436481

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[adamwintle]

If there's no data isn't that the same as no results? Why not just display the noResults value for this?