Fix ingredient type conversion for null number

src/core/Ingredient.mjs

@@ -113,6 +113,7 @@ class Ingredient {
                     return data;
                 }
             case "number":
+                if (data === null) return 0;
                 number = parseFloat(data);
                 if (isNaN(number)) {
                     const sample = Utils.truncate(data.toString(), 10);