A copy of an invalid settings file that cannot be written, for example
on a full disk, is now reported and the save goes ahead, as it does
when the copy cannot be given its name. Before, the save was refused.
On a volume that needs the fallback move, a read-only settings file is
recognized by its attribute and refused at once instead of after the
full wait.
Refs #46
Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
Signed-off-by: James Maes <james@kof22.com>