- Create new patch
- Create a new object box
- Click on an empty area of the patch to instantiate the empty object.
- Right-click on an empty area of the patch to show the canvas menu
- Choose "Properties"
- Close the canvas dialog.
- Try to close the patch.
Bug! In the "Are you sure" dialog the message that is supposed to appear above the buttons is instead invisible.
Tested on Windows 7.