This is a list of sub-issues places where there are still Git SHAs in the UI. * [x] #342: on a MR, when a user adds new commits, there is a commit list in the discussion history * [x] #348: retroactively applying fix for #342 * [ ] In the "View file" page, the dropdown list with class `tree-ref-holder` shows git hashes. * [x] #202: Commits are not automatically linked in Markdown (comments etc.)