When delete a dataReader in subscribtion, why the deconstruction is precessed twice?

[wddpfx]

#0  0x0000ffffaceb341c in pthread_cond_wait@@GLIBC_2.17 () from /lib/aarch64-linux-gnu/libpthread.so.0
#1  0x0000ffffac9e6670 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib/aarch64-linux-gnu/libstdc++.so.6
#2  0x0000ffffaba50c18 in eprosima::detail::shared_mutex<(eprosima::detail::shared_mutex_type)0>::lock (this=0x17975458) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/include/fastrtps/utils/shared_mutex.hpp:198
#3  0x0000ffffaba5176c in eprosima::detail::debug_wrapper<eprosima::detail::shared_mutex<(eprosima::detail::shared_mutex_type)0> >::lock (this=0x17975458) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/include/fastrtps/utils/shared_mutex.hpp:241
#4  0x0000ffffaba510ac in std::lock_guard<eprosima::detail::debug_wrapper<eprosima::detail::shared_mutex<(eprosima::detail::shared_mutex_type)0> > >::lock_guard (this=0xffffe390acc8, __m=...) at /opt/toolchains/aarch64--glibc--stable-2020.08-1/aarch64-buildroot-linux-gnu/include/c++/9.3.0/bits/std_mutex.h:159
#5  0x0000ffffabb650b4 in eprosima::fastrtps::rtps::RTPSParticipantImpl::deleteUserEndpoint (this=0x17974ef0, endpoint=...) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/rtps/participant/RTPSParticipantImpl.cpp:1846
#6  0x0000ffffabb80af8 in eprosima::fastrtps::rtps::RTPSDomainImpl::removeRTPSReader (reader=0x230b28b0) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/rtps/RTPSDomain.cpp:518
#7  0x0000ffffabb80a08 in eprosima::fastrtps::rtps::RTPSDomain::removeRTPSReader (reader=0x230b28b0) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/rtps/RTPSDomain.cpp:502
#8  0x0000ffffabc1ad24 in eprosima::fastdds::dds::DataReaderImpl::stop (this=0x2311b980) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/fastdds/subscriber/DataReaderImpl.cpp:317
#9  0x0000ffffabc1ae08 in eprosima::fastdds::dds::DataReaderImpl::~DataReaderImpl (this=0x2311b980, __in_chrg=<optimized out>) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/fastdds/subscriber/DataReaderImpl.cpp:331
#10 0x0000ffffabc1aecc in eprosima::fastdds::dds::DataReaderImpl::~DataReaderImpl (this=0x2311b980, __in_chrg=<optimized out>) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/fastdds/subscriber/DataReaderImpl.cpp:334
#11 0x0000ffffabc0c1c8 in eprosima::fastdds::dds::SubscriberImpl::delete_datareader (this=0x23133cb0, reader=0x179ad0d0) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/fastdds/subscriber/SubscriberImpl.cpp:283
#12 0x0000ffffabc15328 in eprosima::fastdds::dds::Subscriber::delete_datareader (this=0x17853e30, reader=0x179ad0d0) at /zdrive/platform/modules/framework/ros2/zdds/src/fastdds/fastrtps/src/cpp/fastdds/subscriber/Subscriber.cpp:126
#13 0x0000ffffac5774a4 in rmw_fastrtps_shared_cpp::destroy_subscription(char const*, CustomParticipantInfo*, rmw_subscription_t*) () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librmw_fastrtps_shared_cpp.so
#14 0x0000ffffac55dae4 in rmw_fastrtps_shared_cpp::decrement_context_impl_ref_count(rmw_context_t*) () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librmw_fastrtps_shared_cpp.so
#15 0x0000ffffac5ed880 in rmw_destroy_node () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librmw_fastrtps_cpp.so
#16 0x0000ffffacfe2804 in rcl_node_fini () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librcl.so
#17 0x0000ffffad250360 in rclcpp::node_interfaces::NodeBase::NodeBase(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<rclcpp::Context>, rcl_node_options_t const&, bool, bool)::{lambda(rcl_node_t*)#2}::operator()(rcl_node_t*) const () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librclcpp.so
#18 0x0000ffffad250598 in std::_Sp_counted_deleter<rcl_node_t*, rclcpp::node_interfaces::NodeBase::NodeBase(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<rclcpp::Context>, rcl_node_options_t const&, bool, bool)::{lambda(rcl_node_t*)#2}, std::allocator<void>, (__gnu_cxx::_Lock_policy)2>::_M_dispose() () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librclcpp.so
#19 0x0000ffffad250de0 in rclcpp::node_interfaces::NodeBase::~NodeBase() () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librclcpp.so
#20 0x0000ffffad250fa4 in rclcpp::node_interfaces::NodeBase::~NodeBase() () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librclcpp.so
#21 0x0000ffffad245888 in rclcpp::Node::~Node() () from /zeekr_plt/platform/ros/galactic/install/lib/zros_test/../../lib/librclcpp.so
#22 0x000000000042f9f8 in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() ()
#23 0x0000000000466bd0 in zros_test::Client::start_stop_test_unit_(int) ()
#24 0x0000000000467cd8 in zros_test::Client::run(int, char**) ()
#25 0x0000000000420674 in main ()

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