Check if the trimmed data range of Subtotal double references
is valid otherwise do not trim.
regression after: b89047a0f0
(tdf#164843 - sc optimize "SubTotal" function's reference ranges)
Change-Id: I5f1fa4f67a685deb4a391e19e3acd9849b03c1b4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/191691
Tested-by: Jenkins
Reviewed-by: Balazs Varga <balazs.varga@collabora.com>