Share button on detail view not available

[chrieinv]

When opening the details view, there is a Share button available. If selecting an older version from the history list the Share button disappears. If selecting, from the version history, the version where the button was available, the button still does not appear.

[tmkarlsen]

The same goes for newly created (and published) content. It does not help to refresh the page, I have to navigate to my/sheared content in order for it to appear.