where instantiating and allocating a whole map just to extract a single key is way inefficient Change-Id: I55248bc71a9e8826cab9b76fa6916bfa888efa0b Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134226 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>