The supermarket is being investigated for "product dumping": https://www.npr.org/sections/thetwo-way/2018/01/30/581843472/fraud-officials-are-investigating-sal

The supermarket is being investigated for "product dumping": https://www.npr.org/sections/thetwo-way/2018/01/30/581843472/fraud-officials-are-investigating-sales-that-caused-nutella-riots-in-france https://www.npr.org/sections/thetwo-way/2018/01/30/581843472... France has strict rules about when a product can be sold for below cost.