Under Lilypond 2.18, the following does not work as expected:
\version "2.19.45"
{
g b c r-"Fine" \bar "|." \break
\tempo "Trio"
\repeat volta 2 {
c a f f }
}
The double bar at "Fine" fails to appear. The line closes with a regular bar.
I saw the discussion at Rendering second ending closing bar when followed by another repeat in Lilypond, and the hint in the manual to use \bar ".|:-||"
. However, no variation of the above yields the desired outcome.