Merge_rests_Engraver and dotted rests

[Michael Gerdau]

Hi list,

when merging dotted rests the Merge_rests_Engraver does keep 2 dots. Is this 
intentional (and why?) or a bug?

Here my MWE
===============
\version "2.19.82"

\score {
  << { r2. r4 } \\ { r2. r4 } >>
  \layout {
    \context {
      \Staff
      \consists #Merge_rests_engraver
    }
  }
}
===============

Kind regards,
Michael
-- 
Michael Gerdau email: address@hidden
GPG-keys available on request or at public keyserver