Problem controlling page numbers in bookparts

[Michael Gerdau]

Hi list,

I'm trying to control the page numbering for bookparts in a score.
In particular I want each bookpart start with page #1 and omit it
on the first page. Therefor I'm adding a paper block inside bookpart
and set
    first-page-number = #1
    print-first-page-number = ##f
(see the attached example)

Unfortunately the second page is numbered 2 and visible, i.e. both
settings seem to have no effect.

What am I doing wrong here?
[I'm aware I could place each bookpart in a separate file and process
them individually]

Kind regards,
Michael
-- 
 Michael Gerdau       email: address@hidden
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page-numbers-test.ly
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page-numbers-test.pdf
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