def METHOD_NAME(crs: CRS) -> CRS:
    """Get the geodetic CRS for the provided CRS but with no prime meridian shift."""
    gcrs = crs.geodetic_crs
    if gcrs.prime_meridian == 0:
        return gcrs
    with ignore_pyproj_proj_warnings():
        gcrs_dict = gcrs.to_dict()
    gcrs_dict.pop("pm", None)
    gcrs_pm0 = CRS.from_dict(gcrs_dict)
    return gcrs_pm0