rails/rails — pull request #5614 by kryzhovnik (2012-03-27 13:23:41+00:00)
Title: Fixing issue #2492 for 3-2-stable

ActionView::Base.field_error_proc doesn't call for label.

objectify_options method should be applied to the proper options arg.

See explanation and example of the bug - https://github.com/kryzhovnik/rails_field_error_proc_bug_example