"Close source" should not work for reverse mode apps but it currently does

[ZainAjam]

When in reverse mode and I click an external link, I don't want to the web app that is the source to close. So the "close source" feature should not apply to reverse mode. However, when I physically click the extension button in the browser, I do want the source to close and the target to open. So my request is to make the 'close source" option not work with reverse mode.