Freeze break request for gnome-documents

[Cosimo Cecchi <cosimoc gnome org>]

Hi,

I would like to push this patch [1] in gnome-documents for today's
release. Having spinner working again revealed we never stopped the
animation after fading out the loading spinner; this keeps the CPU
really busy during normal operations, so it's IMO a severe enough bug
to warrant a last minute freeze break - trivial patch attached to the
bug.

[1] https://bugzilla.gnome.org/show_bug.cgi?id=684726

Thanks,
Cosimo