Wrong paths in .ncx after epub.write

[marcelek]

After changing some components.src and write to epub .opf is correct, but .ncx path are not changed. Check this:

book = Peregrin::Book.new
book = Peregrin::Epub.read('my_validate_book.epub').to_book

book.components.each do | component |
    component.src = "new_" + component.src
end

epub = Peregrin::Epub.new book
epub.write 'new_not_proper_epub.epub'

Problem is in lib/formats/epub.rb build_ncx method. xml.content(:src => chapter.src) should rather write proper content.src. Each chapter don't have to be in seperate file.