Option minimize mutliple window in OSX

[bobky]

Just found out that you can option minimize multiple application windows at once, all going to the dock. (or option double click title bar)

So I tired it in mozilla 1.1b and I get a hidden window too, which disappears when I click it in the dock.

Anyone notice this too?

[bousozoku]

The hidden window has been there for a while. I first noticed it in version 0.9.1. What it does, who knows? I never found it in the source code.