getting rid of Time Sig change heads up at end of line

[Adam Good]

In the code below there are 3 bars of 4/4 followed by 3 bars of 10/8. 
It is important that the \break is at the end of the 3rd bar of 4/4.

you'll see at the end of the 1st line there is a sort of warning that 
10/8 is coming...how do I get rid of that? Without cancelling the 10/8 
on the 2nd line?

If I use:
\once \override Staff.TimeSignature #'stencil = ##f

...that gets rid of any 10/8 sign altogether but then how do I get 10/8 
to print on the next line?

thanks!
adam

%%%%%%%%%%%%%%
\new Voice { \relative a' {

\override Staff.TimeSignature #'style = #'()
\time 4/4
f'4. e8 f4 g8 a g8. f16 e8 f e4 d r4 e8 f e4 d4 \break

\time 10/8

e8. d16 c8 b c4 r4 d8 e d c d4 a'16 g a8
 g8. f16 e8 f e4 g16 f g8 f2 c4

 }
}
%%%%%%%%%%%%%%

\once \override Staff.TimeSignature #'stencil = ##f