when dealing with modifications to container classes (e.g. std::vector)

Change-Id: Ic30043631007355ee9a3d9e3f9b6488b435182d6
Reviewed-on: https://gerrit.libreoffice.org/65050
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>