Catalog-specific FDSN queries have started returning all associated origins as separate events
Original description from @nambruz
Summary
FDSN queries on specific catalogs return associated origins as separate events.
Additional details
For example, querying the AK catalog from 2013-07-25T22:44:00 to 2013-07-25T22:45:00 returns two events, ak0139h22gnb and ak10767196, even though these origins are associated (GeoJSON results here).
However, omitting the catalog from the query URL returns only one event, ak0139h22gnb, which is the preferred origin (GeoJSON results here).
Here are 2 more queries showing the same results for NM origins nm610601 and nm60063142: with catalog specified and without catalog specified.