The 4th argument is of wrong type.

The 4th argument of this ScFormulaCell constructor expects a clone flag,
not grammar.  And passing that causes a misbehavior when copying formulas
down the column.

Change-Id: I93663526eb98dd7bfa1160a151de3ef15801f98d
(cherry picked from commit 457c6ebfef707d9187b9e8903886d79a80d24938)