Created attachment 617211 [details]
double KW13

There is an annoying Bug in the calculation of week numbers. In Gnome3 
The KW13 is shown twice and the KW43 is missing in Year 2015. 

Seems that this Bug has already reported to the Gnome Team and a fix is
available  -> https://bugzilla.gnome.org/show_bug.cgi?id=736722

Please port this fix to OpenSuse. 


how to reproduce:

1. Install OpenSuse 13.2 with X11 and gnome
2. log in
3. start gnome-tweak-tool from command line
4. go to "Top Bar"
5. enable Show week numbers
6. click on the clock on the top of the Screen
7. Go to March 2015 or October 2015

I'm not sure if the problem occurs in all language settings in German it is
reproducible.