Restore the call (without checking its returned value), removed in commit
d194474aab ("tdf#151100: xText->getString()
may be empty for content needing export", 2022-09-22), side effects of
which obviously allow some object's changes to get flushed and saved.
Change-Id: I62f27cd056c32ad76f79a4862e2f4a0964eaadef
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146106
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
