Refer to the simple HTML file attached:

Once you call the empty function on the the drop down, you can not manipulate it it any other manner. In the attached html, once I click on the test button, i cannot manipulate the contents of the dropdown.

To reproduce:

1. Click on the Test button. It will remove the content of the dropdown.

2. Click on the Test2 button. It will do nothing.

Refresh the page

1. Clock on the Test2 button. Verify that colorado is added to the drop down.

2. Click on the Test button. It will remove the content of the dropdown.

3. Click on the Test2 button agian. It will not be able to add the colorado to dropdown