Surcharge prices will not update properly

If you notice that the items going into your basket are not properly surcharged, then you most likely updated the atribute which is not being priced in after you created it.

This one was a royal pain in the behind to debug. On the other hand, the fix is almost trivial and it is criticaly important for everyone to fix this thing! Simply change $attribute->surcharge to $attr->surcharge in function ec_live_subproducts_set_attribute so that line becomes:

$attr_total["surcharge"] += $attr->surcharge;