456.1020.  Intent to exercise — determining intent from residuary clause. — 1.  As used in this section:

  (1)  "Residuary clause" does not include a residuary clause containing a blanket-exercise clause or a specific-exercise clause; and

  (2)  "Will" includes a codicil and a testamentary instrument that revises another will.

  2.  A residuary clause in a powerholder's will or a comparable clause in the powerholder's revocable trust manifests the powerholder's intent to exercise a power of appointment only if:

  (1)  The power is a general power exercisable in favor of the powerholder's estate;

  (2)  There is no gift-in-default clause or the clause is ineffective; and

  (3)  The powerholder did not release the power.