Closes #4683, makes sure both the internal value and the format string have the same number of digits.
Closes #4683, makes sure both the internal value and the format string have the same number of digits.

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