Qt 6/MSVC: tst_qproperty.cpp fails to compile for cmake/developer builds

"C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.27.29110\bin\HostX64\x64\nmake.exe" -f Makefile.Debug
	cl -c -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -Zc:referenceBinding -Zc:__cplusplus -Zi -MDd -std:c++17 -utf-8 -EHsc -W3 -w34100 -w34189 -w44996 -w44456 -w44457 -w44458 -wd4577 -wd4467 /Fd.obj\debug\tst_qproperty.vc.pdb -DUNICODE -D_UNICODE -DWIN32 -D_ENABLE_EXTENDED_ALIGNED_STORAGE -DWIN64 -DQT_NO_JAVA_STYLE_ITERATORS -DQT_TEST_LIB -DQT_CORE_LIB -I. -IC:\dev\6-vs19\install-6-vs19\include\QtCore\6.0.0 -IC:\dev\6-vs19\install-6-vs19\include\QtCore\6.0.0\QtCore -IC:\dev\6-vs19\install-6-vs19\include -IC:\dev\6-vs19\install-6-vs19\include\QtTest -IC:\dev\6-vs19\install-6-vs19\include\QtCore -I.moc\debug -I..\..\..\..\..\mkspecs\win32-msvc -Fo.obj\debug\ @C:\temp\nmBA03.tmp
tst_qproperty.cpp
C:\dev\6-vs19\install-6-vs19\include\QtCore\qproperty.h(422): error C2938: 'std::enable_if_t<false,void>' : Failed to specialize alias template
C:\dev\6-vs19\install-6-vs19\include\QtCore\qproperty.h(422): note: see reference to alias template instantiation 'std::enable_if_t<false,void>' being compiled
.\tst_qproperty.cpp(873): note: see reference to class template instantiation 'QNotifiedProperty<int,void ClassWithNotifiedPropertyWithGuard::callback(void),bool ClassWithNotifiedPropertyWithGuard::trivialGuard(int)>' being compiled