`reload` should fully reload attributes

`reload` is meant to put a record in the same state it would be if you
were to do `Post.find(post.id)`. This means we should fully replace the
attributes hash.

1 files changed, 7 insertions, 0 deletions

diff --git a/activerecord/test/cases/persistence_test.rb b/activerecord/test/cases/persistence_test.rb
index 28341d0b42..1192ecd6b4 100644
--- a/activerecord/test/cases/persistence_test.rb
+++ b/activerecord/test/cases/persistence_test.rb
@@ -858,4 +858,11 @@ class PersistenceTest < ActiveRecord::TestCase
       post.body
     end
   end
+
+  def test_reload_removes_custom_selects
+    post = Post.select('posts.*, 1 as wibble').last!
+
+    assert_equal 1, post[:wibble]
+    assert_nil post.reload[:wibble]
+  end
 end