cursor wrong when hint string begin with "\n"

[tzngit]

1. I enabled multiline by linenoiseSetMultiLine(1);
2. My hint list is {"hint1", "hint2", "help"},and what I return in hintcallback function is something like "\r\nhint1 | hint2", which means concat hint list with "|" into a string prepended by a "\r\n".

The question is, when I enter a 'h', my hint show up in the next line(hint1 | hint2 | help) as it should be,but when I go on entering a 'i', my cursor starts from next line, leaving the previous line a single 'h', which is not my wish.I hope the character I entered could be in same line, just like the way I enter words in terminal.

My question is like this(assume my prompt is >):

h
hint1 | hint2 | help
hi
hint1 | hint2