`%help` triggers an unhandled error

[hugetim]

%help without a command name listed after it causes cell execution to fail, rather than displaying a helpful error message. This traceback shows up in the console:

-[IPKernelApp] ERROR | Exception in message handler:
Traceback (most recent call last):
  File "C:\Users\tjhuegerich\AppData\Local\Continuum\anaconda3\envs\Python2022-05\lib\site-packages\ipykernel\kernelbase.py", line 406, in dispatch_shell
    await result
  File "C:\Users\tjhuegerich\AppData\Local\Continuum\anaconda3\envs\Python2022-05\lib\site-packages\ipykernel\kernelbase.py", line 721, in execute_request
    reply_content = self.do_execute(
  File "c:\users\tjhuegerich\onedrive - lrca\nbstata\nbstata\kernel.py", line 126, in do_execute
    code_cell = Cell(self, code, silent)
  File "c:\users\tjhuegerich\onedrive - lrca\nbstata\nbstata\cell.py", line 22, in __init__
    self.code = magic_handler.magic(code_w_magics, kernel, self)
  File "c:\users\tjhuegerich\onedrive - lrca\nbstata\nbstata\magics.py", line 178, in magic
    code = self._do_magic(name, code, kernel, cell)
  File "c:\users\tjhuegerich\onedrive - lrca\nbstata\nbstata\magics.py", line 164, in _do_magic
    return getattr(self, "magic_" + name.lstrip('%'))(code, kernel, cell)
  File "c:\users\tjhuegerich\onedrive - lrca\nbstata\nbstata\magics.py", line 425, in magic_help
    'text/html': self._get_help_html(code),
  File "c:\users\tjhuegerich\onedrive - lrca\nbstata\nbstata\magics.py", line 383, in _get_help_html
    soup.find('h2').decompose()
AttributeError: 'NoneType' object has no attribute 'decompose'