Another finger spacing bug

[David Raleigh Arnold]

The "2" doesn't rise the way the "4" does.  Again it's avoiding
an impossible collision with a chromatic sign, because it does
right with the sharp removed.  2.4.2 did no better.  daveA

\version "2.2.6"
\include "english.ly"
\paper { papersize = "letter" }
#(set-global-staff-size 20)

below = {  \set fingeringOrientations = #'(down)
 \override Fingering #'staff-padding = #'() }

toppart = \notes {
\key c \major \time 4/4
 a, \below <a-1>4  <cs'-2> <g'-4>
 \bar "|."
}

\score {
  \context Staff <<
  \set Staff.instrument = #"\\Large{1.}"
  #(set-accidental-style 'voice)  
  \clef "G_8"
    \glob
    \new Voice { \voiceOne \toppart }
   >>
}