sw: avoid CrossRefBookmark assertion when exporting ooo83574-1.doc

Follow-up to commit 27384cdf7df20d6bc46e5d028f27be41b49b0f02:
avoid SwIndexReg::Update() correcting the index of CrossRefBookmark away
from 0.

Not sure if it wouldn't be better to remove the requirement that
CrossRefBookmark must have index 0.  Or perhaps remove the SwIndex from
their position completely, like AT_PARA frame anchors.  But since the
whole bookmark stuff stupidly uses inheritance the base class has
established a requirement that a mark has a position.  But then again
the CrossRefBookmark already cannot have a second position, in contrast
to all other marks.

Change-Id: If42cc48724de98151b02469850805f5c77e84c6b

0 files changed, 0 insertions, 0 deletions