[Definition] Avoid a group_by when not running a new resolveseg-bundler-2-specs

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/bundler/definition.rb b/lib/bundler/definition.rb
index 0819bb91c5..01df860d6e 100644
--- a/lib/bundler/definition.rb
+++ b/lib/bundler/definition.rb
@@ -54,8 +54,7 @@ module Bundler
     def initialize(lockfile, dependencies, sources, unlock, ruby_version = nil, optional_groups = [])
       @unlocking = unlock == true || !unlock.empty?
 
-      @dependencies = dependencies
-      @dependencies_by_name = dependencies.group_by(&:name)
+      @dependencies    = dependencies
       @sources         = sources
       @unlock          = unlock
       @optional_groups = optional_groups
@@ -953,9 +952,10 @@ module Bundler
 
     def additional_base_requirements_for_resolve
       return [] unless @locked_gems && Bundler.feature_flag.only_update_to_newer_versions?
+      dependencies_by_name = dependencies.group_by(&:name)
       @locked_gems.specs.reduce({}) do |requirements, locked_spec|
         name = locked_spec.name
-        next requirements if @locked_deps[name] != @dependencies_by_name[name]
+        next requirements if @locked_deps[name] != dependencies_by_name[name]
         dep = Gem::Dependency.new(name, ">= #{locked_spec.version}")
         requirements[name] = DepProxy.new(dep, locked_spec.platform)
         requirements