gcode_move: Make sure to call reset_last_position() in _handle_ready()

If reset_last_position() is invoked prior to the printer being
"ready", then the transform may not be properly accounted for.  Handle
this by calling reset_last_position() when the printer becomes
"ready".

This should fix some "must home first" errors on extrude-only moves.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/extras/gcode_move.py

@@ -54,6 +54,7 @@ class GCodeMove:
             toolhead = self.printer.lookup_object('toolhead')
             self.move_with_transform = toolhead.move
             self.position_with_transform = toolhead.get_position
+        self.reset_last_position()
     def _handle_shutdown(self):
         if not self.is_printer_ready:
             return