From 52e10d3a980f2ebb390f589dc8cc5c62613e73ca Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Sat, 30 Oct 2021 08:24:28 -0700
Subject: [PATCH] Always set last type id

---
 src/compiler/checker.ts | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index dc40f7b15a0..daade99214e 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -20366,12 +20366,14 @@ namespace ts {
                 let lastTypeId = 0;
                 for (let i = 0; i < depth; i++) {
                     const t = stack[i];
-                    // We only count occurrences with higher type ids than the previous occurrences, since higher
-                    // type ids are an indicator of newer instantiations caused by recursion.
-                    if (getRecursionIdentity(t) === identity && t.id >= lastTypeId) {
-                        count++;
-                        if (count >= maxDepth) {
-                            return true;
+                    if (getRecursionIdentity(t) === identity) {
+                        // We only count occurrences with a higher type id than the previous occurrence, since higher
+                        // type ids are an indicator of newer instantiations caused by recursion.
+                        if (t.id >= lastTypeId) {
+                            count++;
+                            if (count >= maxDepth) {
+                                return true;
+                            }
                         }
                         lastTypeId = t.id;
                     }