- done regression to solve the bug with multiple passes cutting from the copper features (I should remember not to make mods here)

- if 'combine' is checked in Gerber isolation but there is only one pass, the resulting geometry will still be single geo
- the 'passes' entry was changed to a IntSpinner so it will allow passes to be entered only in range (1, 999) - it will not allow entry of 0 which may create some issues

flatcamGUI/ObjectUI.py

@@ -276,7 +276,8 @@ class GerberObjectUI(ObjectUI):
         )
         passlabel.setMinimumWidth(90)
         grid1.addWidget(passlabel, 1, 0)
-        self.iso_width_entry = IntEntry()
+        self.iso_width_entry = FCSpinner()
+        self.iso_width_entry.setRange(1, 999)
         grid1.addWidget(self.iso_width_entry, 1, 1)
 
         overlabel = QtWidgets.QLabel(_('Pass overlap:'))