Issue 1650 in lilypond: using multiple \header in a block prints only the latest items

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 1650 by address@hidden: using multiple \header in a block  
prints only the latest items
http://code.google.com/p/lilypond/issues/detail?id=1650

in disaccord to the text in NR 2.13.61, 3.2.1 Creating titles

"As demonstrated before, you can use multiple \header blocks. When same
fields appear in
different blocks, the latter is used. Here is a short example."

when you put a \book around the code, the composer is not printed:

 \book {
 \header {
   composer = "Composer"
 }
 \header {
   piece = "Piece"
 }
 \score {
   \new Staff { c'4 }
   \header {
     piece = "New piece" % overwrite previous one
   }
 }
 }