The sw implementation does so, and the API documentation also says
clients can depend on this.

Change-Id: Ib4d25d7207fd8358de2ec1186d4ca2306e996497
Reviewed-on: https://gerrit.libreoffice.org/27379Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>