[Pkg-owncloud-maintainers] Bug#866308: qtkeychain 0.8 fails to use kwallet5

[Dino Hüllmann]

Since libqtkeychain1 is built without libsecret, applications depending 
on libqt5keychain1 fail to load passwords on Gnome-based systems now. 
For example, the ownCloud client asks for the password on startup (see 
https://github.com/frankosterfeld/qtkeychain/issues/99). Installing 
libgnome-keyring is not an option since it is replaced by libsecret 
(https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=892359).