display "chain of command" for published versions

[splitbrain]

When a revision is published, information about the publisher is shown. But previous approval (or future additional intermediate steps and involved people) are not shown. This might be useful information and should probably be integrated into the banner (and made available for PDF export).

This will likely require an additional query that will circumvent the normal struct access, because those are limited to the published version itself.

Note: this would only happen for published revisions. Not for drafts or other status.

[moka-dev]

That sounds promising, how would you like to approach this?