From 4e6861d3376eb7857d2b0a947c97b6fec8e5bf37 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 5 Aug 2023 12:07:26 +0900
Subject: [PATCH] Fix `Gem::BUNDLED_GEMS.find_gem` return value

If the required name is different from the found gem name, return the
gem name, instead of true that means the required name is an exact gem
name.
---
 lib/bundled_gems.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bundled_gems.rb b/lib/bundled_gems.rb
index 2623e1e96f4581..7b8c907041a02c 100644
--- a/lib/bundled_gems.rb
+++ b/lib/bundled_gems.rb
@@ -59,7 +59,7 @@ def self.find_gem(path)
     else
       return
     end
-    EXACT[n] or PREFIXED[n[%r[\A[^/]+(?=/)]]]
+    EXACT[n] or PREFIXED[n = n[%r[\A[^/]+(?=/)]]] && n
   end
 
   def self.warning?(name)