dampened symbol in tablature when using fonts other than Feta

[Federico Bruni]

I use a different font for TabStaff:

\override TabStaff.TabNoteHead #'font-name = #"Nimbus Sans L Bold"

But when a score contains \deadNote I'm forced to comment the line above
and switch back to Feta, otherwise lilypond can't find noteheads.s2cross
(the Feta glyph for dampened notes).

There's any workaround which allows to have both (different font and
cross glyph on TabStaff)?

Thanks,
Federico