This feature request was first discussed at Workbench Moderation's issue queue at #2652786: Provide a Views filter for moderation state. It's origin was that currently is not possible to filter content by it's moderation state within a view. Here is a screenshot that illustrates the problem:
Image may be NSFW.
Clik here to view.
@Crell suggested to go for a core solution so all entity reference fields that point to configuration entities could benefit from it, hence I am creating this issue.