fuel/core — pull request #1774 by tyoshii (2014-09-24 06:29:22+00:00)
Title: [bugfix] Fieldset->delete isset/unset correct instance value

hi

I try to `delete` function, remove Fieldset_Field instance from the Fieldset, but can't.
I think, Fieldset class have not `$field` but `$fields`.

thanks.