This feature was added with Update 17.
To manage the access that collaborating organization users have to documents (owned by the originating organization) in the document life cycle, a template document, See Only SignedOff Docs Of Other Org Template, is delivered and available through the Desktop Client. For information on how to access the template document and load the file into the system, see Enable new features and functionality using template files.
The following change is included in the template document:
The security rule is modified to handle the document accessibility for collaborators in the document life cycle, as well as to restrict the visibility of company-owned documents through the Show All Revisions and Show All Versions relationships.
To ensure the changes are included, perform an IIS reset or recycle your application pools, and regenerate metadata.