... like Word 2013 does, when the version string indicates that the new
layout is wanted.

An alternative to this change would be to add a new sw layout
compatibility flag and handle this at a layout level (somewhere in
SwAnchoredObject::GetObjRectWithSpaces()). The downside of that approach
is that once a layout flag is added, it's not preferred to tweak its
behavior, while doing the same at import time is not a problem.

Also it's better to have a flag for something which has clear behavior
in some spec / implementer notes, which is not the case for this
problem. (I've mailed dochelp@microsoft, no answer so far.)

Change-Id: Ibad28d27e4bcbe1991a3be1c686064e18e9ffa4d
Reviewed-on: https://gerrit.libreoffice.org/49733Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>