Add pop_max_price_save in case pop_max_price has to be re-computed dynamically, so it can be reset

library/include/mobilisis/payment_opt.h

@@ -25,6 +25,7 @@ public:
         pop_max_time = 0;
         pop_min_price = 0;
         pop_max_price = 0;
+        pop_max_price_save = 0;
         pop_carry_over = -1;
         pop_carry_over_option_id = -1;
         pop_prepaid_option_id = -1;
@@ -61,6 +62,7 @@ public:
     double pop_max_time;
     double pop_min_price;
     double pop_max_price;
+    double pop_max_price_save;
     int pop_carry_over;
     int pop_carry_over_option_id;
     bool pop_truncate_last_interpolation_step;