crash in tdf132431-1.ods --export-to xls

probably related to
commit 817ef891cf2bef8fdc82852f73acb422afb89bd2
tdf#142579 Consider color scale background colors in color filter

Change-Id: I30bc477319ffc5474d9a27c4955603a183cccf12
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121906
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 6 insertions, 2 deletions

diff --git a/sc/source/core/data/column3.cxx b/sc/source/core/data/column3.cxx
index b352eace6c90..60934b5ba8a0 100644
--- a/sc/source/core/data/column3.cxx
+++ b/sc/source/core/data/column3.cxx
@@ -2479,8 +2479,12 @@ class FilterEntriesHandler
                 {
                     const ScColorScaleFormat* pColFormat
                         = static_cast<const ScColorScaleFormat*>(aEntry);
-                    backgroundColor = *(pColFormat->GetColor(aPos));
-                    bHasConditionalBackgroundColor = true;
+                    std::optional<Color> oColor = pColFormat->GetColor(aPos);
+                    if (oColor)
+                    {
+                        backgroundColor = *oColor;
+                        bHasConditionalBackgroundColor = true;
+                    }
                 }
             }
         }