newpage buggy when teoz engine used.

[fifanski]

When using newpage with teoz engine true all the pages have the same size, like if there was no split. Only the content before the 'newpage' is rendered on the first page and the content after 'newpage' is being rendered on the second page, but still the part of the entire sequence diagram is visible.

For more details see:
https://forum.plantuml.net/9376/newpage-is-not-workingwith-teoz