Bend Spanner in a chord: wrong pitch calculation?

[Federico Bruni]

Hi folks

I'm trying to understand how to bend some notes in a chord.
The following example shows a bug, unless I'm missing something:


\version "2.25.19"

mus = \relative {
 % From g\3 to gis\3 there's one semitone,
 % but the Bend spanner is printing 1 instead of 1/2.
 <e'~ \tweak bend-me ##f a\2~ g\3>4\^ <e a\2 gis\3>
 g\^ gis
}

\score {
 \new StaffGroup <<
   \new Staff { \clef "treble_8" \mus }
   \new TabStaff \mus
 >>
 \layout { }
}