FIX: didn't update ext spool comboBox filaments

Change-Id: I5c2d12952b1b3a4f12e1110ff2635eb17e4eccef

src/slic3r/GUI/CalibrationWizardPresetPage.cpp

@@ -1444,6 +1444,7 @@ void CalibrationPresetPage::sync_ams_info(MachineObject* obj)
         }
     }
     else {
+        update_filament_combobox();
         m_multi_ams_panel->Hide();
     }