Incorrect output for `script` command's log

[KSR-Yasuda]

script command outputs log like below:

Script started on 2023-03-23 10:36:59+0900
�]0;user@machine_name: ~/dir_path��[01;32muser@machine_name�[00m:�[01;34m~/dir_path�[00m$ exit

Script done on 2023-03-23 10:37:00+0900

hex

00000000: 5363 7269 7074 2073 7461 7274 6564 206f  Script started o
00000010: 6e20 3230 3233 2d30 332d 3233 2031 303a  n 2023-03-23 10:
00000020: 3336 3a35 392b 3039 3030 0a1b 5d30 3b75  36:59+0900..]0;u
00000030: 7365 7240 6d61 6368 696e 655f 6e61 6d65  ser@machine_name
00000040: 3a20 7e2f 6469 725f 7061 7468 071b 5b30  : ~/dir_path..[0
00000050: 313b 3332 6d75 7365 7240 6d61 6368 696e  1;32muser@machin
00000060: 655f 6e61 6d65 1b5b 3030 6d3a 1b5b 3031  e_name.[00m:.[01
00000070: 3b33 346d 7e2f 6469 725f 7061 7468 1b5b  ;34m~/dir_path.[
00000080: 3030 6d24 2065 7869 740a 0a53 6372 6970  00m$ exit..Scrip
00000090: 7420 646f 6e65 206f 6e20 3230 3233 2d30  t done on 2023-0
000000a0: 332d 3233 2031 303a 3337 3a30 302b 3039  3-23 10:37:00+09
000000b0: 3030 0a                                  00.

In stripping this, the head of prompt �]0;user@machine_name: is not correctly stripped.

Script started on 2023-03-23 10:36:59+0900
;user@machine_name: ~/dir_path�user@machine_name:~/dir_path$ exit

Script done on 2023-03-23 10:37:00+0900

Could you fix this?