fixed price calculation is not using discounted price

Author: ajungg

build.gradle

@@ -24,7 +24,7 @@ allprojects {
     }
 
     project.ext {
-        sdkVersion='0.6.10'
+        sdkVersion='0.6.11'
         versionCode=1
 
         compileSdkVersion=27

core/src/main/java/io/snabble/sdk/Product.java

@@ -217,14 +217,14 @@ public boolean getSaleStop(){
 
     public int getPriceForQuantity(int quantity, RoundingMode roundingMode){
         if (type == Product.Type.UserWeighed || type == Product.Type.PreWeighed) {
-            BigDecimal pricePerUnit = new BigDecimal(price)
+            BigDecimal pricePerUnit = new BigDecimal(getDiscountedPrice())
                     .divide(new BigDecimal(1000));
 
             return pricePerUnit.multiply(new BigDecimal(quantity))
                     .setScale(0, roundingMode)
                     .intValue();
         } else {
-            return quantity * price;
+            return quantity * getDiscountedPrice();
         }
     }