Adding an existing option to a Select Box variable via a Catalog Client Script displays an empty choice in list dropdown - Known Error

Adding an existing option to a Select Box variable via a Catalog Client Script displays an empty choice in list dropdown Description Reproducible in K, not an issue in I and J.

Steps to Reproduce

1 - In a Kingston instance, open an sc_cat_item record, i.e. Access: /nav_to.do?uri=pc_software_cat_item.do?sys_id=039c516237b1300054b6a3549dbe5dfc

2 - Scroll down to 'Variables' related list and click New: type: Select Box question: q1 name: q1

3 - Click Save and stay at q1 Variable form

4 - Scroll down to 'Question Choices' related list and create choices as below; text / value / order --------------------------- one / one / 100 two / two / 200 three / three/ 300

5 - Go back to Access catalog item. Scroll down to 'Catalog Client Scripts' related list. Click New type: onLoad script: function onLoad() { g_form.addOption('q1','two','two'); }

6 - Click Submit

7 - Go to Access catalog item once more. Click Try It from the form header section. /nav_to.do?uri=/com.glideapp.servicecatalog_cat_item_view.do%3Fv%3D1%26sysparm_id%3D039c516237b1300054b6a3549dbe5dfc

8 - Check the q1's options. Notice the dropdown list shows the following: -one -three - -two

Workaround Modify the Catalog Client Script to check if the option exists in the options list before trying to add it to the list.

i.e.:

if (!g_form.getOption('q1', 'two')) { g_form.addOption('q1', 'two', 'two'); }