Another user complaint about incompatible mark-like events

[Jean Abou Samra]

I thought that with c7b238579b3d19c6ac2bc9e7160c803390f7bc07
as well as text marks, all meaningful cases of simultaneous
mark-like events were covered, but there is a question on
-user-fr about this case:

\version "2.25.0"

{
  \repeat segno 2 {
    \sectionLabel "Part I"
    c'1
    \break
    \alternative {
      \volta 1 {
        \sectionLabel "Part II"
        c'1
        \break
      }
      \volta 2 \volta #'() {
        \section
        \sectionLabel "Coda"
      }
    }
  }
  c'1
}



It rejects the \sectionLabel that comes at the same
time as an implicit \codaMark.

Should this be supported, or is there a reasoning that
I am missing?

Of course, for now one can use

\tweak font-size 1.5 \textMark "Part II"

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