Does Safari use send referrer data for open tabs?

If I have 8 tabs open in iPhone Safari and click a link that opens a "new" window (new meaning it takes over an open tab), does Safari send the referrer to the destination's web site/analytics as the spawning URL or the page that was overtaken? I don't mind if it's the spawning but I hate the idea of the open page being shared.

Any insight anyone might have?

Thanks!