Entity Revision Tags

This is an example module.

Example implementation of state_machine/state_flow.

Add a "Version Tagging" field. This field allows you to add tags to entity revivions. Then you can go to admin/content/revision-tags to see the site as that with the tagged revision active. It's currently only works with nodes.

Currently the field has to be named "field_example_tag" in order for the functionality to work.

This is a proof on concept that we are using on a client site.