@staticmethod
def raw_data(tag_value):
    """convert the tag to a dictionary, taking values as is

        This method name and purpose are opaque...  and not true.
        """
    data = {}
    pieces = []
    for p in tag_value.split(' '):
        pieces.extend(p.split(';'))
    for piece in pieces:
        kv = piece.split('=')
        if not len(kv) == 2:
            continue
        key, value = kv
        data[key] = value
    return data
