Fix sv list bugs #2033

1. SV lists created before query_scope was added were getting the wrong query scope set as default.  It was a string when an array was needed.
2. Biblio whitelist and other content type specific restrictions only apply when the content type is selected.  Applying them when content type is all makes the list so restrictive that no nodes can be returned.  This is how it was in the previous release.
Merge pull request #4780 from openscholar/2033-bugfix

Fix sv list bugs #2033