FIX:fixed no longer synchronizing the printer after cancel printing

Change-Id: Ib4a7d59747fac13a431161dc8e77716b357fc8b0

src/slic3r/GUI/SelectMachine.cpp

@@ -2701,6 +2701,9 @@ void SelectMachineDialog::on_selection_changed(wxCommandEvent &event)
         return;
     }
 
+    //reset print status
+    show_status(PrintDialogStatus::PrintStatusInit);
+
     reset_ams_material();
 
     update_show_status();