Hi!
I've looked into this:
* readline 8.1 enables bracketed-paste by default;
* when bracketed-paste is enabled, rl_deprep_terminal() prints
BRACK_PASTE_FINI ("\033[?2004l\r") to rl_outstream;
* this moves the cursor to the beginning of the line (instead of the
position after the prompt), which causes the rlwrap prompt to be
overwritten during rl_redisplay().
* thus, adding "set enable-bracketed-paste off" to my ~/.inputrc fixes
the problem;
* THB I'm not entirely sure whether this is a bug in readline or in
rlwrap, so I'll report it to both upstream projects.
- Felix