Merge RubyGems-3.2.4

lib/rubygems/resolver/best_set.rb

@@ -58,7 +58,7 @@ class Gem::Resolver::BestSet < Gem::Resolver::ComposedSet
   # The calling method must retry the exception to repeat the lookup.
 
   def replace_failed_api_set(error) # :nodoc:
-    uri = error.uri
+    uri = error.original_uri
     uri = URI uri unless URI === uri
     uri = uri + "."
 

lib/rubygems/resolver/index_specification.rb

@@ -43,9 +43,12 @@ class Gem::Resolver::IndexSpecification < Gem::Resolver::Specification
   ##
   # The required_rubygems_version constraint for this specification
   #
+  # A fallback is included because the original version of the specification
+  # API didn't include that field, so some marshalled specs in the index have it
+  # set to +nil+.
 
   def required_rubygems_version
-    spec.required_rubygems_version
+    spec.required_rubygems_version || Gem::Requirement.default
   end
 
   def ==(other)