Clang: Qt Creator hand tries to send end message on backend that does not respond

1  ZwDelayExecution                                             ntdll                    0x76d6c07a    
2  SleepEx                                                      KERNELBASE               0x7fefcb31203 
3  QWindowsPipeWriter::waitForNotification                      Qt5Core                  0x60f764c6    
4  QWindowsPipeWriter::waitForWrite                             Qt5Core                  0x60f7658a    
5  ClangBackEnd::ConnectionClient::sendEndMessage               connectionclient.cpp 81  0x7fee803e6a2 
6  ClangBackEnd::ConnectionClient::finishProcess                connectionclient.cpp 255 0x7fee803de96 
7  ClangBackEnd::ConnectionClient::restartProcessAsynchronously connectionclient.cpp 143 0x7fee803e5b0 
8  QMetaObject::activate                                        Qt5Core                  0x60fe3281    
9  QTimer::timerEvent                                           Qt5Core                  0x60fef93d    
10 QObject::event                                               Qt5Core                  0x60fe8988    
11 QApplicationPrivate::notify_helper                           Qt5Widgets               0x613a8c40    
12 QApplication::notify                                         Qt5Widgets               0x613a7b27    
13 QCoreApplication::notifyInternal2                            Qt5Core                  0x60fc4439    
14 QEventDispatcherWin32Private::sendTimerEvent                 Qt5Core                  0x6100d9ac    
15 QEventDispatcherWin32::processEvents                         Qt5Core                  0x6100cad4    
16 TranslateMessageEx                                           USER32                   0x76c39bbd    
17 TranslateMessage                                             USER32                   0x76c398c2    
18 QEventDispatcherWin32::processEvents                         Qt5Core                  0x6100c1b6    
19 qt_plugin_query_metadata                                     qwindows                 0x7fee790f999 
20 QEventLoop::exec                                             Qt5Core                  0x60fc05c3    
21 QCoreApplication::exec                                       Qt5Core                  0x60fc3164    
22 main                                                         main.cpp             537 0x13f948b1f   
23 WinMain                                                      qtcreator                0x13f94d6e4   
24 __scrt_common_main_seh                                       exe_common.inl       253 0x13f94cb7f   
25 BaseThreadInitThunk                                          kernel32                 0x76b159cd    
26 RtlUserThreadStart                                           ntdll                    0x76d4a561