Last modified: 2013-12-05 20:42:31 UTC
Go to http://ee-flow.wmflabs.org/wiki/Talk:Sandbox and click on the timestamp of the "There's a Flow page attached to a Flow page, so you can Flow while you Flow?" message. You get a blank page.
Works for me. (By the way, the title on that timestamp link has a horrendous amount of whitespace in it.)
The WMF core features team tracks this bug on Mingle card https://mingle.corp.wikimedia.org/projects/flow/cards/469, but people from the community are welcome to contribute here and in Gerrit.
This looks to be about the fact that histories for individual posts aren't showing up - if a post was edited, you should be able to see the latest and all previous revisions from the post history view (accessible by clicking the timestamp next to a post) but right now that page is not showing anything.
This is no longer a blank page. Showing individual revision's of a post is another bug.