Percent repeats and polyphony. Bug?

[Francisco Vila]

Hello. I bring this from the Spanish list:

{
  \time 2/4
  \repeat percent 3 << b'2 \\ b2 >>
  \repeat percent 3 b2
}

[image attached]

Here, the repeated part which has polyphony lacks one of the percent
symbols. Anyone knows why? Thanks.

-- 
Francisco Vila. Badajoz (Spain)
www.paconet.org , www.csmbadajoz.com

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