[Capella import] Wrong handling of pickups
For the following capella file, MuseScore does something weird :-) when importing:
The piece is 3/4, the pickup has length 2/4. MuseScore does not create a pickup at all, but pulls the 2nd (!) chord of the 2nd measure as beat 3 of measure 1, igoring the chord on beat 1 of measure 2 (which is not present in the import at all). The resulting import is basically unsusable since the beats have been shifted, which cannot easily be fixed at the moment as far as I can see.