silverstripe/silverstripe-framework — pull request #2663 by ajshort (2013-11-13 05:22:03+00:00)
Title: NEW: Pre-populate and disable foreign key field on has many lists.

This is a common use case, and by default a form field is added which
has no effect. While this coupling is undesirable, it makes the default
behaviour much more sensible.

See #2662, #2651, #2637 for more information.