You cannot see the revisions of a page concerning the xobjects when a wiki is set up to monolingual, the page default language is different than the wiki default language, and the page has a translation in the wiki default language.
- Setup a wiki to use French as default language in monolingual
- Go to the sandbox page, it should be displayed in french, and add a comment
- Check the history of the page
- The history should show the revision for a comment added
- The history shows only one revision