MR buttons at top of page have accessibility problems

As part of reviewing Add screenreader headings to MR overview (!125753 - merged) for Thomas Randolph, I ran the WAVE accessibility plugin over a merge request page, and encountered problems in this area, one of which I've screenshotted:

I'm seeing two items flagged here, but the obvious one is the vertical-ellipsis menu needs to declare a name / purpose to the user.

I think this probably qualifies for UX Paper Cuts, as well.