Elongated beamed grace note stems

The length seem to be OK when the first acciaccatura in bar 2 starts in a space. But when the acc. starts on a line, inc. a ledger line, the stems become elongated. You can see this by selecting both grace notes and using Alt + Shift + ↑↓ repeatedly.

This was marked fixed in Stems too long on beamed grace notes .

And see here: Stems are too long on small beamed notes .

Still an issue in 2.2.

Came up again at https://musescore.org/en/node/309591.