Choice of Extraneous Bars or No Accidental

[John McChesney-Young]

I'm new to Lilypond and I'm having trouble with a piece of music with 
irregular timing which I want to transcribe from a printed source primarily 
so I can have the program transpose it down. Here's a brief working excerpt 
that displays the problem:

\version "2.18.2"
\relative c''
{
{
\clef "treble" \key a \major \time 4/4
%three well-behaved measures snipped
<<fis,4 cis'2(>> eis,4) fis2~( \bar "||" 
fis\breve \bar "|"  
<<eis2 gis)>> \bar ":|." 
}
}

When I compile that, I get an extra single bar before my manual double bar 
and after the breve I get two extra single bars for a total of three before 
the final measure.

I did some research and discovered that cadenzaOn/Off will suppress 
automatic bars. I added it to my code and it solved the bars problem nicely 
but now the e# accidental in the last measure has lost its # marking. 

\version "2.18.2"
\relative c''
{
{\clef "treble" \key a \major \time 4/4
\cadenzaOn 
%three well-behaved measures snipped
<<fis,4 cis'2(>> eis,4) fis2~( \bar "||"
fis\breve \bar "|" 
\cadenzaOff
<<eis2 gis)>> \bar ":|." 
}
}

Perhaps Lilypond sees the sharp marking two measures back and is 
disregarding my manual bars and considering the two notes to be in the same 
measure? That seems odd to me since the second use of the accidental is 
after cadenzaOff.

How can I have both the bars and the accidental markings? I don't want to 
have to go back to abcs or MuseScore (although I suspect the latter would 
have trouble with this too).

Thanks very much!

John