TB gripe(?) -- the updated Thread does NOT rise to the TOP

HenHanna <[email protected]> Wed, 21 Feb 2024 17:27:43 -0800

Newsgroups	alt.comp.software.thunderbird,news.software.readers,alt.comp.google
Organization	A noiseless patient Spider
Message-ID	<[email protected]>

i just noticed something about TB's Middle-Pane  (sorting of Threads)

Let's say there's a thread i started 5 days ago,
    and 10 minutes ago someone posted a REALLY Great Response to it...

in TB's  Middle-Pane,   the updated Thread does NOT  rise to the TOP

                     ( float it to the TOP is how NovaBBS handles it)

Is this a bug or Spec or ... Is this adjustable ?