Sparse data in ExtendedData area is causing a crash

Which products are affected?
Google Earth

What steps will reproduce the problem?
1. Load the kml file attached.
2. View the elevation profile of the track object.
3. Kablooie (that is the sound of GE crashing)

What is the expected output or behavior? What do you see instead?
According to the KML docs on <track> you can sparsely declare data inside a 
gx:track. It is documented that this includes ExtendedData. It says it will 
interpolate across them empty entries, but that is not what we ware seeing. 
Instead an empty <gx:value/> causes GE to crash when the Elevation Profile is 
viewed.

What application versions (if any) are you using?
Google Earth (version 5.2.1.1588 and 6.0.0.1735)

Which operating systems (and/or relevant web browsers) are affected?
Windows 7 64 bit.

Please provide any additional information (code snippets/links) below.

Original issue reported on code.google.com by fatke...@gmail.com on 25 Jan 2011 at 8:45

Attachments:

track-sparse.kml
Google_Earth_6.0.0.1735_beta_110125-124455_1.dmp

scientamit / kml-samples

Sparse data in ExtendedData area is causing a crash #373