unexpected accidental following cadenza

[David Bobroff]

I got a surprise when a cancelling accidental was printed at the 
beginning of a measure.  This happened following a cadenza.  Short 
example below:


%%%
\version "2.14.2"

\relative c'
{
  \key c \major
  \cadenzaOn
  fis4 g a b
  \cadenzaOff
  \bar "|"
  f
}
%%%

Is this a bug?

-David