Mac OS: tst_qfiledialog reports objc[91404]: Object 0x10d100140 of class __NSArrayM autoreleased with no pool in place - just leaking and similar many times

objc[91404]: Object 0x10d100140 of class __NSArrayM autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
[Switching to process 91404 thread 0x4c1f]

Breakpoint 1, 0x00007fff8ff67a0d in objc_autoreleaseNoPool ()
(gdb) where
#0  0x00007fff8ff67a0d in objc_autoreleaseNoPool ()
#1  0x00007fff8ff53402 in (anonymous namespace)::AutoreleasePoolPage::autoreleaseSlow ()
#2  0x00007fff8ff67bec in _objc_rootAutorelease2 ()
#3  0x0000000101a2f73e in QFseventsFileSystemWatcherEngine::startStream (this=0x106c060d0) at io/qfilesystemwatcher_fsevents.mm:479
#4  0x0000000101a30840 in QFseventsFileSystemWatcherEngine::addPaths (this=0x106c060d0, paths=@0x106babb30, files=0x106c060c0, directories=0x106c060c8) at io/qfilesystemwatcher_fsevents.mm:405
#5  0x0000000101cf442a in QFileSystemWatcher::addPaths (this=0x106c05a00, paths=@0x106babb88) at qfilesystemwatcher.cpp:330
#6  0x0000000101cf45ca in QFileSystemWatcher::addPath (this=0x106c05a00, path=@0x106babdf0) at qfilesystemwatcher.cpp:260
#7  0x00000001003d268e in QFileInfoGatherer::getFileInfos (this=0x106c05848, path=@0x106babdf0, files=@0x106babde8) at dialogs/qfileinfogatherer.cpp:278
#8  0x00000001003d2536 in QFileInfoGatherer::run (this=0x106c05848) at dialogs/qfileinfogatherer.cpp:217
#9  0x0000000101a74cab in QThreadPrivate::start (arg=0x106c05848) at qthread_unix.cpp:345
#10 0x00007fff8d552772 in _pthread_start ()
#11 0x00007fff8d53f1a1 in thread_start ()