[rubygems/rubygems] Don't blow up when explicit version is removed from some git sources

`version` is actually an attribute of the dependency, not of the git
source. Sometimes it's passed to the git source to be able to fake a
gemspec in case there's no gemspec in the source, but it should not be
used for source comparison.

https://github.com/rubygems/rubygems/commit/d936fbd78e

lib/bundler/source/git.rb

@@ -70,13 +70,13 @@ module Bundler
       end
 
       def hash
-        [self.class, uri, ref, branch, name, version, glob, submodules].hash
+        [self.class, uri, ref, branch, name, glob, submodules].hash
       end
 
       def eql?(other)
         other.is_a?(Git) && uri == other.uri && ref == other.ref &&
           branch == other.branch && name == other.name &&
-          version == other.version && glob == other.glob &&
+          glob == other.glob &&
           submodules == other.submodules
       end
 

spec/bundler/install/gemfile/git_spec.rb

@@ -1107,6 +1107,25 @@ RSpec.describe "bundle install with git sources" do
       run "require 'new_file'"
       expect(out).to eq("USING GIT")
     end
+
+    it "doesn't explode when removing an explicit exact version from a git gem with dependencies" do
+      build_lib "activesupport", "7.1.4", path: lib_path("rails/activesupport")
+      build_git "rails", "7.1.4", path: lib_path("rails") do |s|
+        s.add_dependency "activesupport", "= 7.1.4"
+      end
+
+      install_gemfile <<-G
+        source "https://gem.repo1"
+        gem "rails", "7.1.4", :git => "#{lib_path("rails")}"
+      G
+
+      install_gemfile <<-G
+        source "https://gem.repo1"
+        gem "rails", :git => "#{lib_path("rails")}"
+      G
+
+      expect(the_bundle).to include_gem "rails 7.1.4", "activesupport 7.1.4"
+    end
   end
 
   describe "bundle install after the remote has been updated" do