[webservices] duplicate origin in event xml

[Philip Crotwell]

Hi

This url returns 2 copies of the PDE-M origin. Is this a bug or is it
because the PDE-M origin is in both the PDE and ISC catalogs?

http://www.iris.edu/ws/event/query?minmag=5&starttime=2000-06-08T12%3A21%3A00&endtime=2000-06-08T12%3A22%3A00&includeallmagnitudes=yes&orderby=time&preferredonly=no

thanks
Philip