in src/setter/array-setter/index.tsx [119:127]
onAdd(newValue?: {[key: string]: any}) {
const { itemSetter, field, onChange, value = [] } = this.props;
const values = value || [];
const initialValue = (itemSetter as any)?.initialValue;
const defaultValue = newValue ? newValue : (typeof initialValue === 'function' ? initialValue(field) : initialValue);
values.push(defaultValue);
this.scrollToLast = true;
onChange?.(values);
}