new behavior of lilypond-book-preamble.ly?

[K. Blum]

Dear LilyPond community,

up to Ly 2.23.4, the use of
    \include "lilypond-book-preamble.ly"
removed any whitespace around the score.

As of Ly 2.23.5, the music is moved to the upper left corner, but the
paper size remains unchanged.

Is this a new (intended) behavior? Or have I just been missing something
important?
What do I need to do to get an entirely cropped image again? Thanks for
any hint.

Cheers,
Klaus

P.S.: Here is my MWE to test and demonstrate:
% ----------------------------------
\include "lilypond-book-preamble.ly"
% \paper {indent = 0}
{c'}
% ----------------------------------