Bug 11292 - barcode scanner clicking 'save'

Bug 11292 - barcode scanner clicking 'save'

When cataloging a bib record if you scan an ISBN barcode in the barcode
scanner clicks the 'save' button before the cataloging is done. This did
not happen in 3.10, but is happening again in 3.12.

Test Plan:
1) Open the marc editor
2) Focus on a field, hit the enter key
3) Note the record tries to save
4) Focus on an indicator, hit the enter key
5) Note the record tries to save
6) Apply this patch
7) Repeat steps 2 and 4, note the record no longer
   tries to save upon carriage return

Signed-off-by: Christopher Brannon <cbrannon@cdalibrary.org>
Patch tested with a sandbox.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>