This is safe to ignore both, when one of them empty, as opposed to a case when both are non-empty, but have different number of elements. Allows to read some broken real-life documents. A possible TODO: maybe consider to warn about a broken package, and only open in repair mode? Change-Id: I0697dcc73933aa1761ba59a766a519965872a0ed Reviewed-on: https://gerrit.libreoffice.org/c/core/+/202552 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>