Resolves: tdf#111428 swap ScColumn::mnBlkCountFormula

 This is a combination of 2 commits.

(cherry picked from commit 423df1fa)
(cherry picked from commit 911e2aff)

CellStoreEvent remembered the original ScColumn::mnBlkCountFormula,
hence after inserting a column to the left the quick check of
ScColumn::HasFormulaCell() whether there are any formula cells worked on
the swapped in count (originally the one to the right) that happens to
be empty in the scenario. Things worked correctly by accident if the
next column to the right already contained a formula cell.

c44fed96c49bea7365bf1200e06788860966795c

Change-Id: If993856ceee657736f516a81c293506041a6b7eb
Reviewed-on: https://gerrit.libreoffice.org/44210Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Eike Rathke <erack@redhat.com>
Reviewed-on: https://gerrit.libreoffice.org/44493
(cherry picked from commit 7f1297d9)

sc/source/core/data/column.cxx

@@ -1891,6 +1891,9 @@ void ScColumn::SwapCol(ScColumn& rCol)
     maCellTextAttrs.swap(rCol.maCellTextAttrs);
     maCellNotes.swap(rCol.maCellNotes);
 
+    // Swap all CellStoreEvent mdds event_func related.
+    std::swap( mnBlkCountFormula, rCol.mnBlkCountFormula);
+
     // notes update caption
     UpdateNoteCaptions(0, MAXROW);
     rCol.UpdateNoteCaptions(0, MAXROW);