If a legacy is bequeathed to a person who is named an executor of the will, he shall not take the legacy, unless he proves the will or otherwise manifests an intention to act as executor.
Illustration A legacy is given to A, who is named an executor. A orders the funeral according to the directions contained in the will, and dies a few days after the testator, without having proved the will. A has manifested an intention to act as executor.