GetCostFromDuration(): take into account that (for Kirchdorf and progressive tariff)

there is no carry over.

library/src/calculator_functions.cpp

@@ -525,14 +525,17 @@ double Calculator::GetCostFromDuration(Configuration* cfg,
                 }
             }
 
-
             if (current.time() >= to) {
+                if (carryOverNotSet) {
+                    return 0;
+                } else {
                     QDateTime const dt = start;
                     start = start.addDays(1);
                     start.setTime(QTime(0, 0, 0));
 
                     durationMinutesBrutto += dt.secsTo(start) / 60;
                     current = start;
+                }
             } else {
                 break;
             }