1. edit the view template (I got to it through MasterIndex)
2. eliminate the attach button on the bottom (or whatever else you want)
3. save
4. view the view template.
5. click revisions in the outermost chrome
6. compare the latest revision to the penultimate one.
7. on the penultimate one, locate the "revision X" link at the top of the right hand column in which the view template is (recursively) displayed)
8. click edit (in an effort to edit then save in order to make this version the new version -- our current way of reverting)

You will see the broken page.