Middle clicking history items in the back/forward menus opens them in the same tab instead of a new tab

What happened? How did it happen? What are the steps to replicate the issue.

1. Go to https://orionfeedback.org
2. Click on any submission
3. Right click the Back button
4. Middle click any of the history items
5. The history item is opened in the tab you are currently in

What did you expect to happen? Describe the desired functionality.
Middle clicking a history item should open it in a new tab as is the case on Safari, Firefox, and Chrome.
Currently Orion allows the user to open them in a new tab if they hold ⌘ when left clicking an item in the menu.

Marked this as a bug as I am quite sure this functionality has existed in a prior version but I could very well be imagining that.

What version of Orion are you running?
Version 0.99.125.6-rc (WebKit 618.1.1)