hashicorp/terraform — pull request #681 by svanharmelen (2014-12-16 13:22:19+00:00)
Title: core: adding a small fix to the Same() func (diffing diffs)

This is a little tricky, but when a diff contains a computed list or set that can only be interpolated after the apply command has created the dependant resources, it could turn out that the result is actually the same as the existing state which would remove the key from the diff.