Log in GoogleEarth, relative altitude waypoints are not shown

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What steps will reproduce the problem?
1. Make flight plan. Do not use absolute altitude, but relative (for example 70 
m above ground)
2. Fly
3. Download log, and look it in Google Earth

What is the expected output? What do you see instead?
I see flight route. There should also be waypoints, but they are under ground.

What version of the product are you using? On what operating system?
ArdupilotMegaPlanner 0.4.20

Please provide any additional information below.
In kml file altitudes are relative, for example 70 m above ground. However 
altitudeMode is Absolute.
And please note that home coordinate is above sea level, other are relative to 
that.

Original issue reported on code.google.com by alpo.has...@gmail.com on 25 Apr 2011 at 6:51

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PS. It would be nice, if route color changes when flight mode changes. For 
example:
Red = RTL or Loiter
Yellow = Auto
Green = Stabilize or FBW
etc

Original comment by alpo.has...@gmail.com on 26 Apr 2011 at 10:01

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Original comment by Meee...@gmail.com on 27 Apr 2011 at 5:13

• Added labels: Priority-Low, Type-Enhancement
• Removed labels: Priority-Medium, Type-Defect

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Original comment by Meee...@gmail.com on 9 May 2011 at 10:00

• Changed state: Fixed