edit distance issue

[mrkrcc]

CHANGES_MAP = { 1: 0, 2: 0, 3: 1, 4: 1, 5: 1, 6: 2, 7: 2, 8: 2, 13: 3, 14: 4, 19: 4, 20: 5, 26: 5, 27: 6, 36: 6 }
i have changes map like above(len(word): editDistance).
max_dictionary_edit_distance: int = 2

whenever i change editDistance to more than 2, i got an error

if max_edit_distance > self._max_dictionary_edit_distance:
raise ValueError("distance too large")

even if i change default max_dictionary_edit_distance it returns 2 again. i know it is possible to change, but i couldn't

[mrkrcc]

i was using saved pickle so impossible to change distance.