no_list=True ... fails?

[flypenguin]

i think this is a bug:

import dotty_dict
d = dotty_dict.dotty(no_list=True)
d["one.two"] = "three"     # works
d["one.2"] = "three"       # boom!!

immediate result:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/tm/.virtualenvs/backend/lib/python3.9/site-packages/dotty_dict/dotty_dict.py", line 198, in __setitem__
    set_to(self._split(key), self._data)
  File "/Users/tm/.virtualenvs/backend/lib/python3.9/site-packages/dotty_dict/dotty_dict.py", line 190, in set_to
    set_to(items, data[it])
  File "/Users/tm/.virtualenvs/backend/lib/python3.9/site-packages/dotty_dict/dotty_dict.py", line 194, in set_to
    self.set_list_index(data, it, value)
  File "/Users/tm/.virtualenvs/backend/lib/python3.9/site-packages/dotty_dict/dotty_dict.py", line 210, in set_list_index
    data.append(None)
AttributeError: 'dict' object has no attribute 'append'