\beamExeceptions problem

[Richard Shann]

My understanding of the \beamExceptions function in 2.20 was that you
should be able to pass it a complete bar beamed as you would wish and
expect other bars with the same beat structure to be beamed to match.
In this example barOne and barTwo have the same rhythm but only barOne
is beamed as desired.
What have I got wrong?

Richard Shann
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\version "2.20"

barOne = {g'16 b' b'[( a'32 g']) d'16[ c''16] c''16[( b'32 a'])}

barTwo = {g'16 b' b'( a'32 g') d'16 c''16 c''16( b'32 a')}


Music = {
      \barOne
      \barTwo   
}

\score { %Start of Movement
          <<
            \new Staff { 
               \time 2/4 \Music
                        }
          >>

          \layout {
              \overrideTimeSignatureSettings 2/4 1/4 #'(1 1) 
              \beamExceptions \barOne
              }
       }
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