Cloned track should be same size as the cloned track.
 
Amazing grammar provided by the English language.
 
Do you know what I mean?

/derail
Proof clones don't have souls?
/hide

I think you mean, "The Clone track should be same size as the track it was cloned from."
 

To be perfectly clearer: When I clone a track the new track is collapsed. I think the current height should also be cloned.

I just tested this with Platinum.  Regardless of whether or not the original track is collapsed or expanded, the clone is created at the default track height.
 
Funny, I changed the default track height to test this.  The first time is created the clone at the previous default track height.  I saved the project and tried again - this time the clone was created at the new default track height.
 
FWIW, I think I prefer the clone being created at my customized default height to any other option I can think of.  Unless alternatives are created in the clone options, but default to the current action.

YouDontHasToCallMeJohnson
...I think the current height should also be cloned.

 
As I recall, it used to work that way in earlier versions of Sonar.

bimp