Appending results from babel block

[Ken Mankoff]

Hello,

I'd like to append results from a babel block, but without the leading ":" that 
sometimes appears. Is this possible. I'm using v9.7-pre.

This works, but has leading colons:

#+BEGIN_SRC bash :results append
echo $(date)
#+END_SRC

#+RESULTS:
: Fri Jan 26 07:17:00 PM PST 2024
: Fri Jan 26 07:17:01 PM PST 2024
: Fri Jan 26 07:17:02 PM PST 2024
: Fri Jan 26 07:17:04 PM PST 2024

Setting :results append raw

prepends - understandably because 'raw' means there is no delimiter, and no way 
to know where the results end.

Weirdly,

:results append drawer

Appends result #2, but then inserts all results after the first.

Is this last behavior a bug? Any way to have true 'append' w/o ":"?

Thanks,

  -k.