Creating table from extension chunked array does not persist field metadata

[kylebarron]

        ca = ChunkedArray.from_arrow(self._s)
        metadata: dict[str, str] = {
            "ARROW:extension:name": self.geoarrow_name,
        }
        if self.geoarrow_metadata:
            metadata["ARROW:extension:metadata"] = json.dumps(self.geoarrow_metadata)
        field = Field("", type=ca.type, nullable=True, metadata=metadata)
        
        with_ext_meta = ChunkedArray(ca.chunks, field)
        t = Table({'a': with_ext_meta})
        t.schema.field('a').metadata

metadata is empty