A new Calc document: in one column select a range of blank cells
(or a range of cells in which only the first one is not blank).

Now merge them (choose menu Format ⟶ Merge Cells or
the "Merge Cells" button on the Formatting bar).

Calc shall merge the cells but when the range is in the last column of
the sheet, i.e. AMJ (1024), Calc will first ask:

  Should the contents of the hidden cells be moved into the first cell?

This shouldn't happen because it doesn't happen with any column
other than AMJ.

Issue reproducible with 4.1.15 and the lastest 4.2dev.



SOURCE CODE POINTER, file: main/sc/source/ui/view/viewfun2.cxx

Consider the condition on line 1130 below if the value of "nStartCol"
corresponds to the AMJ column.

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1129   if ( !pDoc->IsBlockEmpty( nStartTab, nStartCol,nStartRow+1, nStartCol,nEndRow, true ) ||
1130        !pDoc->IsBlockEmpty( nStartTab, nStartCol+1,nStartRow, nEndCol,nEndRow, true ) )
1131   {
1132      if (!bApi)
1133        {
1134           MessBox aBox( GetViewData()->GetDialogParent(),
1135                         WinBits(WB_YES_NO_CANCEL | WB_DEF_NO),
1136                         ScGlobal::GetRscString( STR_MSSG_DOSUBTOTALS_0 ),
1137                         ScGlobal::GetRscString( STR_MERGE_NOTEMPTY ) );
1138           sal_uInt16 nRetVal = aBox.Execute();
1139
1140           if ( nRetVal == RET_YES )
1141                  rDoContents = sal_True;
1142           else if ( nRetVal == RET_CANCEL )
1143                  bOk = sal_False;
1144      }
1145   }

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