Hello,
I've got into a strange behavior of a \tuplet that can be seen with this code:
{\clef alto \tuplet 3/2 {a8-3( g-2 f-1)}}
to be compared with the same without the slur
{\clef alto \tuplet 3/2 {a8-3 g-2 f-1}}
for which there is no collision between fingering and tuplet number.
In my little piece, I will just use \once\omit TupletNumber and I would be done, but I think it could be a bug some would like to investigate (even if it seems quite rare to occur).
Cheers,
--
JJ Fleck
Physique et Informatique
PCSI1 Lycée Kléber