Steps to reproduce:
1. Schedule a recording and retrieve recording catalog to verify that it includes a DublinCore "created" element (and/or the "extent" field)
2. In the Admin UI, edit the recording metadata and submit
3. Retrieve the recording catalog
Actual Results: The "created" element is missing
Expected Results: The "created" element should still be in the catalog
Workaround (if any): none
Note: The "extent" DublinCore element also disappears if it existed prior to the edit.
Possibly related to MH-9444,
Any field not known to oc.scheduler.js isn't being saved when the recording is edited so I'm going to add all the remaining fields, and not show them in the ui.
Committed Sergio's patch
Merged into 1.4.x with rev 13931.