Does the inductor l7710 on a motherboard 820-00138 have polarity?

A technician switched the inductor l7710 from motherboard 820-00138 from my macbook pro a1398, but the part was welded with reverse polarity. He said that this component has no polarity, is this true?

I think the job was badly done, with a lot of welding. Can someone tell me if this is correct? Thank you