Comment 6 for bug 1822678

Also trying to open kit-dev-coldfire-xilinx-5213 KiCad crashes immediately on open.

std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__is_long() const string:1406
std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__get_pointer() const string:1500
std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::begin() const string:906
bool boost::regex_match<std::__1::char_traits<char>, std::__1::allocator<char>, char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::_match_flags) regex_match.hpp:100
SCH_CONNECTION::IsBusGroupLabel(wxString const&) sch_connection.cpp:365
SCH_CONNECTION::ConfigureFromLabel(wxString) sch_connection.cpp:130
CONNECTION_GRAPH::buildConnectionGraph()::$_1::operator()() const connection_graph.cpp:665
decltype(std::__1::forward<CONNECTION_GRAPH::buildConnectionGraph()::$_1>(fp)(std::__1::forward<>(fp0))) std::__1::__invoke<CONNECTION_GRAPH::buildConnectionGraph()::$_1>(CONNECTION_GRAPH::buildConnectionGraph()::$_1&&) type_traits:4339
void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, CONNECTION_GRAPH::buildConnectionGraph()::$_1>(std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, CONNECTION_GRAPH::buildConnectionGraph()::$_1>&, std::__1::__tuple_indices<>) thread:342
void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, CONNECTION_GRAPH::buildConnectionGraph()::$_1> >(void*) thread:352
_pthread_body 0x00007fff7217a2eb
_pthread_start 0x00007fff7217d249
thread_start 0x00007fff7217940d