[SR-Users] Malformed To Header

Hello all, In my situation, it is possible to call forwarding to registered users multiple times on same leg. For each forward i have to update To uri and i am using uac_replace_to to do that. But on second relaying, To uri was malformed. On below, Im attaching configuration to illustrate my problem. (version-5.4.9) First relay - /To: //sip:xyz@192.168.0.51/ Second relay - /To: sip:xyz@192.168.0.51sip:abc@192.168.0.51/ Thanks in advance. Serdar /loadmodule "uac.so"// //modparam("uac","restore_mode","auto")// // // //request_route {// //    ...// //    $avp(x) = "abc";// //    $avp(x) = "xyz";// //    $avp(myip) = "192.168.0.51";// //    $avp(i) = 0;// //    route(SERDAR);// //    ...// //}// // //route[SERDAR] {// //    if ($(avp(x)[$avp(i)])!=$null) {// //        $avp(destination) = $(avp(x)[$avp(i)]);// //        $avp(i) = $avp(i) + 1;// //        $rU=$_s($avp(destination));// //uac_replace_to("$_s(sip:$avp(destination)@$avp(myip))");// //        route(LOCATION);// //    } else {// //        send_reply("403", "Opps!");// //        exit;// //    }// //}// // //route[LOCATION] {// //    $avp(oexten) = $rU;// //    if (!lookup("location") ) {// //        t_newtran();// //        switch ($var(rc)) {// //            case -1:// //            case -3:// //                send_reply("480", "Temporarily Unavailable");// //                exit;// //            case -2:// //                send_reply("405", "Method Not Allowed");// //                exit;// //        }// //    }// //    t_on_failure("SERDAR_FAILURE");// //    if(!t_relay()) sl_reply_error();// //    exit;// //}// // //failure_route[SERDAR_FAILURE] {// //    route(NATMANAGE);// //    if (t_is_canceled()) //exit;// //    route(SERDAR);// //}/