Special:History doesn't show much except "Taken over by Flow".
Expected: For a Flow page, where the content type is 'flow-board' [1], Special history should redirect to the default history page view [2]
Example: https://www.mediawiki.org/wiki/Special:History/Talk:Content_translation
[1] use $wgTitle->getContentModel()
[2] https://www.mediawiki.org/w/index.php?title=Talk:Beta_Features/Hovercards&action=history&useskin=minerva