placement of clef before break

[Juan Cristóbal Cerrillo]

Hello,

I’m having trouble understanding how to change the placement of a clef before a 
break.
In the following example, the clef should be placed after the repeat bar not 
before, otherwise it could cause confusion in more extended passages.
In the following example, I would like to be able to place the clef after the 
repeat barline, and the time signature in parenthesis.

Any help would be greatly appreciated.

All best,

jc

\version "2.18.2"

\paper {
  ragged-right = ##t
}

<<
  \new PianoStaff  \relative c' {
    \time 3/8
    \clef "treble"
    \bar ".|:"
    \repeat unfold 3 {c'8 b a}
    \bar ":|."
    
    \break
    
    \time 3/8
    \clef "bass"
    g,,8 c a d 
  }
>>