funny tie

[David Bobroff]

I finally managed to reproduce the funny tie I mentioned some days ago. 
The tie should actually arch upwards (the notes stems point down) but it
is nearly flat with a slight downward curve.  This appears to happen
under certain size and horizontal spacing contstraints.

-David

\version "2.1.34"

funny = \notes \relative c {
    \clef F
    \time 4/4
    fis4 ~ fis8 r8 r4 c,4
}

#(set-global-staff-size 16)

\score {
    \notes \relative c {
        \new Staff \with {
            fontSize = #-2
            \override StaffSymbol #'staff-space = #(magstep -2)}
        {\funny}
        
    }

\paper { indent = 0
         linewidth = 4 \cm
     }
}