RhythmicStaff fermata placement

[Jim Long]

Please educate me if my rhythmic staff technique is to blame, but
the attached example shows the use of a fermata in a
RhythmicStaff context.

My measurements here are approximate, but ....

When combined with a zero-line staff and \stemDown, the fermata
is engraved about one staff space or so above the zero-line
staff, which seems understandable.

However, the notehead and tie extend more than a staff space
outside the staff, resulting in a collision with the fermata.

The second score uses a five-line staff with no stencil.  This is
not a workaround, but just an example showing graphically what
IMO would be a better default behaviour in the original case of
the zero-line staff and \stemDown.

Thank you!

Jim

fermata-test.ly
Description: Text Data

fermata-test.png
Description: PNG image