compile failure in umbrello master

[Ralf Habacker]

Am 07.12.18 um 18:27 schrieb Jonathan Riddell:
> https://build.neon.kde.org/job/bionic_unstable_kde_umbrello_bin_amd64/43/console
>
> from /workspace/build/umbrello/main.cpp:12:
> 17:21:13 /usr/include/KF5/KCoreAddons/kaboutdata.h:1173:1: error:
> specialization of ‘template<class T> struct QMetaTypeId’ in different
> namespace [-fpermissive]
> 17:21:13  Q_DECLARE_METATYPE(KAboutData)
> 17:21:13  ^

This is a Qt5.10 issue (Qt5.11 does not have this problem) and has been
fixed with
https://commits.kde.org/umbrello/917a475f3ca7a9230430b6be5d2cf76156c98e3b

Ralf