add comment on the new prop

src/components/SelectionList/BaseSelectionList.tsx

@@ -352,6 +352,7 @@ function BaseSelectionList<TItem extends ListItem>(
                 onCheckboxPress={onCheckboxPress ? () => onCheckboxPress?.(item) : undefined}
                 onDismissError={() => onDismissError?.(item)}
                 shouldPreventDefaultFocusOnSelectRow={shouldPreventDefaultFocusOnSelectRow}
+                // We're already handling the Enter key press in the useKeyboardShortcut hook, so we don't want the list item to submit the form
                 shouldPreventEnterKeySubmit
                 rightHandSideComponent={rightHandSideComponent}
                 keyForList={item.keyForList ?? ''}