Extraneous accidental after barline in cadenza

[James Harkins]

I would like the E-natural to print here without the accidental.

\version "2.16.1"
\include "english.ly"

\relative c' {
  \key g \major

  ef1
  g
  e1  % no explicit natural sign here

  \cadenzaOn

  ef1
  \bar "|"
  g
  \bar "|"
  e1  % but there is one here - I want to get rid of it
}

In this minimal example, it could be argued that the visible
cancellation makes sense. In my actual score, it doesn't: the E-flat
is early in the system, and the E-nat. is quite a bit later, with many
notes and three barlines intervening (see attached screenshot). The
cancellation is superfluous there, but I can't get rid of it (not even
with "\set Staff.extraNatural = ##f").

Thanks,
hjh

e-natural-oops.png
Description: PNG image