(RTL from Mission Planner) Behaviour?

Hi All
I want to ask about --RTL from Mission Planner-- behaviour .

Do it returns to Home and loiters above Home
OR
Returns to Home , loiters for 5 seconds and Lands.

Kindly help if anyone of you have used this feature before ??

Fully documented here:
http://ardupilot.org/copter/docs/rtl-mode.html