I have provided 3 choice selection parameters (country->state->county) with values (USA, California, Santa Clara and USA, California, San Jose). Upon selecting the county (USA->California->San Jose), when I try to print the selected values, I am always getting the last selected value i.e., San Jose instead of "USA,California,San Jose". I am fetching the selected value using the name of the choice selection parameter control (e.g., $my_selection)