As part of the big bug review for 16.04 LTS I have tested this on 15.10 and the bug is still there.
Change in behaviour:
A new Nautilus window is opened and focused regardless of the current state of Nautilus. This behaviour occurs when a Nautilus window is open, closed, minimised and even when Nautilus is stopped (nautilus -q in a terminal).
As part of the big bug review for 16.04 LTS I have tested this on 15.10 and the bug is still there.
Change in behaviour:
A new Nautilus window is opened and focused regardless of the current state of Nautilus. This behaviour occurs when a Nautilus window is open, closed, minimised and even when Nautilus is stopped (nautilus -q in a terminal).