Fixed input to bed shape dialog to catch everything that resolves to 0. Fixes #3681 (#3683)
Fixed input to bed shape dialog to catch everything that resolves to 0. Fixes #3681 (#3683)


prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r