avoids a bunch of broadcasting.
a similar mega-master-page scenario as reported in tdf#158773
9.1 - 7.0s
Some re-ordering of SVG output occurs, which means
tweaking some unit tests.
Change-Id: I447a4639a96c12c627a074f7e0f1ede8b3cbaf72
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175299
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
76319347a8