and reuse them for interpret'ing all cells under the
respective threads. This gives a sizeable win in the execution
time especially for long formula-groups.
Change-Id: Ib340950f21e863b5b821d20c092214d8bc5012aa
Reviewed-on: https://gerrit.libreoffice.org/80845
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>