Thread sanitizer sometimes throws a warning when clickhouse-client is killed.

WARNING: ThreadSanitizer: thread leak (pid=5876)
Thread T1 (tid=5878, finished) created by main thread at:
#0 pthread_create ??:? (clickhouse+0x35b02c6)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_deletestd::thread::_State >, void (*)()) ??:? (clickhouse+0xbf36504)
#2 DB::Suggest::load(DB::ConnectionParameters const&, unsigned long) /home/user/github/ClickHouse_vzakaznikov/build/../dbms/programs/client/Suggest.h:169 (clickhouse+0x3746198)
#3 DB::Client::mainImpl() /home/user/github/ClickHouse_vzakaznikov/build/../dbms/programs/client/Client.cpp:416 (clickhouse+0x374172e)
#4 DB::Client::main(std::vector<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::allocator<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > const&) /home/user/github/ClickHouse_vzakaznikov/build/../dbms/programs/client/Client.cpp:242 (clickhouse+0x373f244)
#5 Poco::Util::Application::run() /home/user/github/ClickHouse_vzakaznikov/build/../contrib/poco/Util/src/Application.cpp:335 (clickhouse+0xac9db0d)
#6 mainEntryClickHouseClient(int, char**) /home/user/github/ClickHouse_vzakaznikov/build/../dbms/programs/client/Client.cpp:1860 (clickhouse+0x3732b04)
#7 main /home/user/github/ClickHouse_vzakaznikov/build/../dbms/programs/main.cpp:166 (clickhouse+0x364bede)

SUMMARY: ThreadSanitizer: thread leak ??:? in pthread_create