Tooltips in burndown chart hidden behind SVG image
The tooltips on the burndown chart are hidden behind the SVG image (at least in Firefox 45.0.2).
Expected behaviour is, that the tooltips are shown above the image.
I created a tiny patch, that adds a "z-index: 10" to the ".graphic-tooltip" class in the "scrum.css" stylesheet. The number 10 is the lowest number that works.