Commit message when I upgraded rails from 2.3.8 to 2.3.9.

gistfile1.txt

Upgrade rails to 2.3.9.

2.3.9 fixes a bug that we had come to depend on
(https://github.com/rails/rails/pull/7661). It's best described with an
example

2.3.8

    p = Plan.new
    p.member = Member.first
    p.contacts << Contact.first
    p.plan_contacts # => []
    p.save # => true

2.3.9

    p = Plan.new
    p.member = Member.first
    p.contacts << Contact.first
    p.plan_contacts # => [#<Contact ...>]
    p.save # => RunTimeError

The difference is that `plan_contacts` are being built before the
association is saved. All specs were updated to ensure the plan was
persisted by adding contacts.