From e9812b95e68bf37e18d0149fc0d3c61f454efe9e Mon Sep 17 00:00:00 2001
From: chronolaw <chrono_cpp@me.com>
Date: Thu, 1 Sep 2022 10:58:22 +0800
Subject: [PATCH] assert(inst:remove_matcher(id))

---
 kong/router/atc.lua | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kong/router/atc.lua b/kong/router/atc.lua
index 84e4b84373e0..bfe043429cb9 100644
--- a/kong/router/atc.lua
+++ b/kong/router/atc.lua
@@ -231,7 +231,8 @@ local function new_from_previous(routes, get_exp_priority, old_router)
       r.seen = nil
 
     else
-      inst:remove_matcher(id)
+      assert(inst:remove_matcher(id))
+
       old_routes[id] = nil
       old_services[id] = nil
     end