Fix of https://github.com/prusa3d/Slic3r/issues/791 The preset names have to be set at the PlaceholderParser before querying Print for a recommended file name.
Fix of https://github.com/prusa3d/Slic3r/issues/791
The preset names have to be set at the PlaceholderParser
before querying Print for a recommended file name.

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