In case you want to see what have changed, compared to reference build, you are doing currently following steps:

• Go to warnings page
• Deselect "Outstanding", so only "New" and "Fixes" showed
• Click within the diagram on "New" => new page (middle click to open new tab doesn't work)
• Go back to previous page
• Deselect again "Outstanding"
• Click within the diagram on "Fixed" => new page

It would be much easier if behavior would be changed, so "Details" table get synchronized with the diagram. So if you deselect "Outstanding", you only see "New" and "Fixed" issues in table => no reload of page necessary