And be it further enacted, That where any Person being a Child or other Issue of the Testator to whom any Real or Personal Estate shall be devised or bequeathed for any Estate or Interest not determinable at or before the Death of such Person shall die in the Lifetime of the Testator leaving Issue, and any such Issue of such Person shall be living at the Time of the Death of the Testator, such Devise or Bequest shall not lapse, but shall take effect as if the Death of such Person had happened immediately after the Death of the Testator, unless a contrary Intention shall appear by the Will.