This is important for MJPC, where some element special names (e.g., a site called "trace0", or different custom numeric fields) are used.
PiperOrigin-RevId: 502338391
Change-Id: I632b5d633c92b82b60160daeeb169693225640a3
Also, don't add a Global Settings component at import if the xml doesn't have any global settings (option/size/custom).
PiperOrigin-RevId: 495950899
Change-Id: I6599e8ea3f3a82729fc5c974fd7ced8eb93b277e