Removed incorrect assert in GUI_COMMAND_OBJECT_UPGRADE

Author: 6emmes

src/game/logic/object/object.cpp

@@ -4203,10 +4203,11 @@ void Object::Do_Command_Button(const CommandButton *button, CommandSourceType ty
                     const UpgradeTemplate *upgrade = button->Get_Upgrade_Template();
                     captainslog_dbgassert(upgrade != nullptr, "Undefined upgrade '%s' in player upgrade command", "UNKNOWN");
 
-                    if (upgrade == nullptr
-                        || upgrade->Get_Type() == UPGRADE_TYPE_OBJECT
+                    if (upgrade != nullptr
+                        && upgrade->Get_Type() == UPGRADE_TYPE_OBJECT
                             && (Has_Upgrade(upgrade) || !Affected_By_Upgrade(upgrade))) {
-                        goto l1;
+                        break;
+
                     }
 
                     ProductionUpdateInterface *production = Get_Production_Update_Interface();