FuzzyWordCompleter strange behaviour (blank space in the bottom)

[enty8080]

Hello,

I've noticed that when you try to use FuzzyWordCompleter with PromptSession it causes prompt not to reach the bottom of the terminal window and stop at some point leaving large blank space.

s = PromptSession(complete_while_typing=True, completer=FuzzyWordCompleter(['a']))

while True:
    text = s.prompt('console> ', bottom_toolbar="This is a toolbar")

result:

As you can see, when the prompt reaches some point it stops leaving blank space in the bottom.

Let me know if it is a normal behaviour.

Kind regards,
Ivan Nikolskiy (@enty8080)