Musescore Songbook - please don't drop an octave when climbing up the transposition ladder

Firstly, apologies if this is the wrong forum for putting in requests for changes to Songbook - I can't find a similar forum on the Android site.

To transpose a song in Musescore Songbook you select the 'transpose' button and climb up the keys (F to F# to G to G#..... and the notes of the song move appropriately.

BUT at some stage in the process, even though you've gone up another semitone, the notes go down 11 semitones - i.e. up a semitone and down an octave.

This is a right pain for a sax player like me when the result is notes below B flat, the lowest playable on a sax.

Can this irritating feature (bug?) be suppressed please - or at least introduce a sensible limit on when this dropping (or rasing) by an octave happens - maybe when it involves more than three ledger lines above or below the stave maybe?

Regards

jabu4711