Fix enter causing miscompletion of group names on access rights

Now that we have the additional reference field available most
of the time, pressing enter in the group name field shouldn't
trigger an addition, but instead should just be the default
behavior of finishing the completion event.

Bug: issue 507
Change-Id: Ib9d06169223cbb6e978a6e113e224d47f2dee7e2
Signed-off-by: Shawn O. Pearce <sop@google.com>
1 file changed