input() not including built-in newline if string > 236 characters

Bug report

Bug description:

When using input() in the REPL, the behavior is not as expected if the string is > 236 characters (in fact, the input text disappears entirely).

#=====
# string = 236 characters

s = """wow this is a really long sentence, like really who types a sentence this long, but i guess if you have something to say that's important and it takes a long time to say, you can write a long sentence for it, especially if shorter works"""

input(s)  # expected behavior - this shows the text to the user during input

#=====
# string > 236 characters

s = """wow this is a really long sentence, like really who types a sentence this long, but i guess if you have something to say that's important and it takes a long time to say, you can write a long sentence for it, especially if shorter works and you need more text"""

input(s)  # unexpected behavior - this does not show the text to the user during input

#=====
# string > 236 characters, with manual newline added

s = """wow this is a really long sentence, like really who types a sentence this long, but i guess if you have something to say that's important and it takes a long time to say, you can write a long sentence for it, especially if shorter works and you need more text\n"""

input(s)  # unexpected behavior - this shows the text to the user, but the prompt is not at the end of the string

CPython versions tested on:

3.13

Operating systems tested on:

Windows

Tái hiện ba ví dụ bằng Python 3.13 trên Windows, so sánh các prompt có 236 ký tự và hơn 236 ký tự, cùng với ký tự xuống dòng được thêm thủ công. Truy vết việc xử lý prompt nhập liệu của REPL tạo ra văn bản biến mất hoặc bị đặt sai vị trí; hoàn thành có nghĩa là các prompt dài vẫn hiển thị và con trỏ nhập liệu nằm ở cuối prompt.