Symptoms

Using the API call "g_form.addOption" in a lookup select box filters out duplicates

Release

All

Cause

This is implemented by design to address PRB620011, here is the code preventing duplicates:

Looks like we have deliberate duplicate checking in addOption: 

var len = control.options.length; 
+ 
+ // validate that duplicate choice label is not being added. 
+ for (i = 0; i < len; i++) { 
+ if (control.options[i].text == choiceLabel) { 
+ return; 
+ } 
+ } 

Resolution

Working as expected, and it cannot be change since this is within the source code itself