Perform noop query when releasing savepoint

Author: aidanharan

lib/active_record/connection_adapters/sqlserver/savepoints.rb

@@ -17,6 +17,7 @@ def exec_rollback_to_savepoint(name = current_savepoint_name)
         end
 
         def release_savepoint(_name)
+          internal_execute("/* release #{name} savepoint */", "TRANSACTION")
         end
       end
     end