fdo#83764: Ensure that the row position is below MAXROW.

When attempting to split formula groups, else multi_type_vector would
try to locate a block outside its logical range.

Change-Id: I424ede112138de459b5ba3bff5e021c4407ccf3d

sc/source/core/data/column4.cxx

@@ -916,11 +916,16 @@ public:
 
 void ScColumn::SplitFormulaGroupByRelativeRef( const ScRange& rBoundRange )
 {
+    if (rBoundRange.aStart.Row() >= MAXROW)
+        // Nothing to split.
+        return;
+
     std::vector<SCROW> aBounds;
 
     // Cut at row boundaries first.
     aBounds.push_back(rBoundRange.aStart.Row());
-    aBounds.push_back(rBoundRange.aEnd.Row()+1);
+    if (rBoundRange.aEnd.Row() < MAXROW)
+        aBounds.push_back(rBoundRange.aEnd.Row()+1);
     sc::SharedFormulaUtil::splitFormulaCellGroups(maCells, aBounds);
 
     RelativeRefBoundChecker aFunc(rBoundRange);

sc/source/core/data/table3.cxx

@@ -781,8 +781,11 @@ void ScTable::SortReorderByColumn(
         sc::CellStoreType& rCells = aCol[nCol].maCells;
         sc::CellStoreType::position_type aPos = rCells.position(nRow1);
         sc::SharedFormulaUtil::joinFormulaCellAbove(aPos);
-        aPos = rCells.position(aPos.first, nRow2+1);
-        sc::SharedFormulaUtil::joinFormulaCellAbove(aPos);
+        if (nRow2 < MAXROW)
+        {
+            aPos = rCells.position(aPos.first, nRow2+1);
+            sc::SharedFormulaUtil::joinFormulaCellAbove(aPos);
+        }
     }
 }