nautilus should improve a little bit it's window focus handling: when user clicks on a file inside a window that is behind currently active window, then the active window loses it's focus to the window behind. 

but much more convenient way is to handle it the way osx's finder does - lose focus only when user clicks on empty space between files, but does not lose focus when user clicks on a file. that makes dragging-and-dropping between windows MUCH more comfortable. 

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