Fixes Sonar #6: The user-supplied array 'selection' is stored directly. 
http://dev.eyeq.co.kr/sonar/reviews/view/6
Fixes Sonar #4: The user-supplied array 'sourceSelection' is stored
directly. 
http://dev.eyeq.co.kr/sonar/reviews/view/4
Fixes Sonar #5: The user-supplied array 'targetSelection' is stored
directly. 
http://dev.eyeq.co.kr/sonar/reviews/view/5