Fix selected state of dispatch is/not first/last dropdown in order window

src/order_gui.cpp

@@ -2807,7 +2807,7 @@ public:
 					list.emplace_back(new DropDownListStringItem(STR_ORDER_CONDITIONAL_COMPARATOR_DISPATCH_SLOT_IS_NOT_FIRST, 0x101, false));
 					list.emplace_back(new DropDownListStringItem(STR_ORDER_CONDITIONAL_COMPARATOR_DISPATCH_SLOT_IS_LAST, 0x102, false));
 					list.emplace_back(new DropDownListStringItem(STR_ORDER_CONDITIONAL_COMPARATOR_DISPATCH_SLOT_IS_NOT_LAST, 0x103, false));
-					int selected = ((o->GetConditionValue() % 2) * 2) + ((o->GetConditionComparator() == OCC_IS_FALSE) ? 1 : 0);
+					int selected = 0x100 + ((o->GetConditionValue() % 2) * 2) + ((o->GetConditionComparator() == OCC_IS_FALSE) ? 1 : 0);
 					ShowDropDownList(this, std::move(list), selected, WID_O_COND_COMPARATOR, 0, true);
 					break;
 				}