KAZOO-3308: remove the park redirect from the hash if the invite has an auth reply

kamailio/dispatcher-role.cfg

@@ -100,8 +100,11 @@ route[DISPATCHER_FIND_ROUTES]
         ##### CALL-PARK ####
         if($(ru{uri.user}) =~ "\*3" && $sht(park=>$(ru{uri.user})@$(ru{uri.domain})) != $null) {
           $du = $sht(park=>$(ru{uri.user})@$(ruri{uri.domain}));
-          $sht(park=>$(ru{uri.user})@$(ruri{uri.domain})) = $null;
           xlog("L_INFO", "$ci|log|redirecting park request to $du");
+          if ($hdr(Proxy-Authorization) != $null) {
+              xlog("L_INFO", "$ci|log|removed park redirect");
+              $sht(park=>$(ru{uri.user})@$(ruri{uri.domain})) = $null;
+          }
           return;
         }