Plan Cutting saved its settings only on a successful Apply, so a plate
that would not plan lost them. Each open then laid the machine's leads
back over the last parameters, and the cutting panel rebuilt parameters
from scratch, dropping kerf and the machine/material/thickness stamp.
Save the settings when the dialog is accepted, keep the panel's
unexposed fields, and only apply the machine's leads when the last
parameters were not already taken from that machine, material, grade
and thickness.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>