From 57404e4369df11f77f089d5d11d310679b2e749f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@riseup.net>
Date: Thu, 10 Oct 2024 20:50:48 +0200
Subject: [PATCH] [rubygems/rubygems] Fix duplicated specs when they have been
 previously activated

https://github.com/rubygems/rubygems/commit/b44bf2ac74
---
 lib/rubygems/specification_record.rb |  2 +-
 test/rubygems/test_gem.rb            | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/rubygems/specification_record.rb b/lib/rubygems/specification_record.rb
index d838fcea26..195a355496 100644
--- a/lib/rubygems/specification_record.rb
+++ b/lib/rubygems/specification_record.rb
@@ -30,7 +30,7 @@ module Gem
     # Returns the list of all specifications in the record
 
     def all
-      @all ||= Gem.loaded_specs.values + stubs.map(&:to_spec)
+      @all ||= stubs.map(&:to_spec)
     end
 
     ##
diff --git a/test/rubygems/test_gem.rb b/test/rubygems/test_gem.rb
index 0d048b08b7..cdc3479e37 100644
--- a/test/rubygems/test_gem.rb
+++ b/test/rubygems/test_gem.rb
@@ -1026,6 +1026,20 @@ class TestGem < Gem::TestCase
     Gem.refresh
   end
 
+  def test_activated_specs_does_not_cause_duplicates_when_looping_through_specs
+    util_make_gems
+
+    s = Gem::Specification.first
+    s.activate
+
+    Gem.refresh
+
+    assert_equal 1, Gem::Specification.count {|spec| spec.full_name == s.full_name }
+
+    Gem.loaded_specs.delete(s)
+    Gem.refresh
+  end
+
   def test_self_ruby_escaping_spaces_in_path
     with_clean_path_to_ruby do
       with_rb_config_ruby("C:/Ruby 1.8/bin/ruby.exe") do