A bug? Mobile store front, clicking in the middle of a product image..

[anton83]

Hello,

Is this a know behaviour or a bug? When viewed on a mobile device, clicking once on a product image (it's main image) will send the product to the cart AND also display the Add to cart button. If a visitor then also clicks the button to (intentionally) put the product into the cart, cart count of the product is increased to 2.