Fix rollback of frozen records

2 files changed, 11 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb
index ffe7c4ae42..ce4b2dfa8e 100644
--- a/activerecord/lib/active_record/transactions.rb
+++ b/activerecord/lib/active_record/transactions.rb
@@ -413,13 +413,14 @@ module ActiveRecord
         transaction_level = (@_start_transaction_state[:level] || 0) - 1
         if transaction_level < 1 || force
           restore_state = @_start_transaction_state
-          thaw unless restore_state[:frozen?]
+          thaw
           @new_record = restore_state[:new_record]
           @destroyed  = restore_state[:destroyed]
           pk = self.class.primary_key
           if pk && read_attribute(pk) != restore_state[:id]
             write_attribute(pk, restore_state[:id])
           end
+          freeze if restore_state[:frozen?]
         end
       end
     end
diff --git a/activerecord/test/cases/transactions_test.rb b/activerecord/test/cases/transactions_test.rb
index 88e595c39f..922d01601e 100644
--- a/activerecord/test/cases/transactions_test.rb
+++ b/activerecord/test/cases/transactions_test.rb
@@ -584,6 +584,15 @@ class TransactionTest < ActiveRecord::TestCase
     assert_not topic.frozen?
   end
 
+  def test_rollback_of_frozen_records
+    topic = Topic.create.freeze
+    Topic.transaction do
+      topic.destroy
+      raise ActiveRecord::Rollback
+    end
+    assert topic.frozen?, 'frozen'
+  end
+
   def test_sqlite_add_column_in_transaction
     return true unless current_adapter?(:SQLite3Adapter)