the last fix for #55430 caused #61025.
Markus Mohrhardt fixed that with by removing parts of the calc part
in 16f6ef0423cd0fd7c0e50ee28e8b32e72e21e090
I got it back where it causes no harm to the labels.

Change-Id: Ifb366a004701d7ec93b66662e14dba850d500e60
Signed-off-by: Lennard Wasserthal <Wasserthal@nefkom.net>
Reviewed-on: https://gerrit.libreoffice.org/2786Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>