From 06cd747d09c07cc63aeda87d19ce704cb0a794c7 Mon Sep 17 00:00:00 2001
From: Miroslav Jonas <missing.manual@gmail.com>
Date: Thu, 29 Jun 2023 14:37:16 +0300
Subject: [PATCH] fix(core): fix lockfile remapping for yarn berry with aliases

---
 packages/nx/src/plugins/js/lock-file/yarn-parser.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/nx/src/plugins/js/lock-file/yarn-parser.ts b/packages/nx/src/plugins/js/lock-file/yarn-parser.ts
index dcad7f2b147b6..8a40ec649700c 100644
--- a/packages/nx/src/plugins/js/lock-file/yarn-parser.ts
+++ b/packages/nx/src/plugins/js/lock-file/yarn-parser.ts
@@ -348,7 +348,10 @@ function mapSnapshots(
           .slice(0, key.indexOf('#'))
           .replace(`@patch:${packageName}@`, '@npm:');
       }
-      if (!existingKeys.get(packageName).has(normalizedKey)) {
+      if (
+        !existingKeys.get(packageName) ||
+        !existingKeys.get(packageName).has(normalizedKey)
+      ) {
         keysSet.delete(key);
       }
     }