MP behaves likes this only. You will get two lines. To get in single record, either try with Constant selection or you should use Infoset with proper joins. Then you will get single line.
I have another idea other than formula variable.
Add CTC KF to your Cube and in your transformation-->Read master Data-->From the Attribute of 0EMPLOYEE
Hence you can see CTC in your Cube itself instead of in BEx.