A section label and segno mark should be allowed to exist together

[tk5wbps2]

% A section label and segno mark should be allowed to exist together
% However the following tiny example generates two warnings:
% 1) warning: conflict with event: `section-label-event'
% 2) warning: discarding event: `segno-mark-event'
% The segno mark is dropped, and the dal-segno becomes a da-capo.

\version "2.23.13"
\absolute {
  e'1
  \section
  \sectionLabel  \markup \box { A }
  \repeat segno 2 {
    g'1 |
  \alternative {
      \volta 1 {
        b'1
      }
      \volta 2 \volta #'() {
        \section
        \sectionLabel "Coda"
      }
    }
  }
  d''1
}