Secondary Literature: Move 730 to 246

[jenniferward]

The 7xx fields are added entry fields for authorized access points, but in Secondary Literature the 730 (https://www.loc.gov/marc/bibliographic/bd730.html) is not used in this way (it does not even link). In Muscat it is just a free-text field and we use it for translations of the title. Essentially this is closer to the 246 in MARC (https://www.loc.gov/marc/bibliographic/bd246.html) and closer to what the 246 does in Sources.

Please move 730 in Secondary Literature to 246.