EDIT: there is not issue here. It seems I got confused at some point.
Sublime Dev Build 2004
When I go to the blame view of a file and hover over the the commit hash/commit author in the left “gutter” a mouse-over menu opens. There more information is shown together with the full commit hash. Clicking on the commit hash in the mouse-over sometimes sends me to the respective commit but not always. I try to find out more about the circumstances…
Another thing: when the jump to the specific commit succeeded and I click on the “go back” button, I get back to the commit that I started from but it does not show me the blame view again of the file I was looking at.