Comment # 7 on bug 1185653 from Axel Braun

(In reply to Fabian Vogt from comment #6)
> Known issue: python3-pyside fails to build because libqt5-qttools from SLE
> is incompatible with the llvm fork in backports.
> 
> *** This bug has been marked as a duplicate of bug 1185203 ***

one more reason for a version bump of qt5/KDE in Leap 15.3.....