Trying to undo with nothing left in stack causes error and closes app

File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/chlorophyll/codeview.py", line 100, in _cmd_proxy
    raise e from None
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/chlorophyll/codeview.py", line 96, in _cmd_proxy
    result = self.tk.call(cmd)
_tkinter.TclError: nothing to undo