Problems calling GetPropertyValue recursively on an empty property which previously had a value

[ProNotion]

See this forum post where the issue was originally posted

If a value is set and subsequently removed when the node is then published it adds an empty cdata section in the cache file e.g.

<headerSlides><![CDATA[[]]]></headerSlides>

Unfortunately this means that recursive property lookups like this:

Model.GetPropertyValue<IEnumerable<IPublishedContent>>("headerSlides", true)

...result in the lookup stopping on the node with the now empty cdata section and not continuing up the tree until it really does find a node with a value on that property.

Pull request to follow.