slur into a repeat volta 2 section

[Knute Snortum]

(There was just recently a discussion around this problem but I can't find
it for the life of me.  Sorry.)

I'm having a problem with a slur going into a repeat volta two section.
Normally I would use a \repeatTie but in this case, the slur is to an
octave and so the \repeatTie "knows" to tie the lower and upper parts of
the chord, when I just want the upper note slurred.  Here is a MWE and I've
attached it's output:

\version "2.24.3"

\relative {
  \repeat volta 2 {
    d''4( e f g
    \alternative {
      \volta 1 { <a, a'>4) d d d }
      \volta 2 { <a a'>4\repeatTie r r2 }
    }
  }
}

--
Knute Snortum