I confirm the problem. Using the extensions installed via apt or using extensions get of extensions.gnome.org the problem happens.
My system: Ubuntu Gnome 13.10 64 bit (3.11.0-12-generic #19-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux), PPA Gnome 3 Team Staging and Next.
I confirm the problem. Using the extensions installed via apt or using extensions get of extensions. gnome.org the problem happens.
My system: Ubuntu Gnome 13.10 64 bit (3.11.0-12-generic #19-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux), PPA Gnome 3 Team Staging and Next.