Issue adding rows into data's of powered using API

[borlip]

I'm adding 2 rows into dataset inside a PowerBI group using API.

It's all good except of instead of adding 2 rows it adds 1 row which is sum of all values. Am I doing something wrong or it's a bug in API?

See more details here:

http://stackoverflow.com/questions/32694477/issue-adding-rows-into-dataset-of-powerbi-using-api