Don't attempt to restore the cursor if there are 0 thumbnails in the current checkerboard; closes #5919.
Don't attempt to restore the cursor if there are 0 thumbnails in the current checkerboard; closes #5919.
ritchiewilson/shotwell,abrauchli/shotwell,abrauchli/shotwell,polymeris/shotwell,abrauchli/shotwell,damianmoore/shotwell,ritchiewilson/shotwell,damianmoore/shotwell,jimbonator/shotwell,polymeris/shotwell,jimbonator/shotwell,jimbonator/shotwell,polymeris/shotwell,damianmoore/shotwell,ritchiewilson/shotwell