ca_fdFetchSelectData(formId, fieldId, validate, keepexisting)
Release : 17.2
Component : CA SERVICE CATALOG
ca_fdFetchSelectData(formId, fieldId, validate, keepexisting)
3rd parameter is to control the validation: true will validate, false will not validate 4th parameter is to keep the existing selections without clearing them when fetching data again. Note this flag is only valid for Dual List component not for Select component although it is named as ca_fdFetchSelectData() . This 4th parameter is really just meant for dual list .This 4th parameter is not documented in the official documentation .
The definition about this function is documented in Catalog UI -> Administration -> Tools -> Links -> Form Designer JavaScript API -> Select