Fixes a fatal error that occurred when attempting to publish to Flickr when no network connection was available. Closes #3361.
Fixes a fatal error that occurred when attempting to publish to Flickr when no network connection was available. Closes #3361.


damianmoore/shotwell,polymeris/shotwell,polymeris/shotwell,jimbonator/shotwell,h4ck3rm1k3/shotwell,Sanva/shotwell-gsoc,damianmoore/shotwell,ritchiewilson/shotwell,abrauchli/shotwell,abrauchli/shotwell,polymeris/shotwell,h4ck3rm1k3/shotwell,jimbonator/shotwell,jof/shotwell,jof/shotwell,jimbonator/shotwell,Sanva/shotwell-gsoc,ritchiewilson/shotwell,Sanva/shotwell-gsoc,h4ck3rm1k3/shotwell,abrauchli/shotwell,damianmoore/shotwell,ritchiewilson/shotwell,jof/shotwell