1 files changed, 2 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb
index 81172179e0..f95e5337c2 100644
--- a/activerecord/lib/active_record/associations/through_association.rb
+++ b/activerecord/lib/active_record/associations/through_association.rb
@@ -16,7 +16,7 @@ module ActiveRecord
           chain[1..-1].each do |reflection|
             scope = scope.merge(
               reflection.klass.scoped.with_default_scope.
-                except(:select, :create_with, :includes)
+                except(:select, :create_with, :includes, :preload, :joins, :eager_load)
             )
           end
           scope
@@ -44,7 +44,7 @@ module ActiveRecord
           join_attributes = {
             source_reflection.foreign_key =>
               records.map { |record|
-                record.send(source_reflection.association_primary_key)
+                record.send(source_reflection.association_primary_key(reflection.klass))
               }
           }