Anim Notify States are ended when CustomTimeDilation is set to zero

UDN link: https://udn.unrealengine.com/s/question/0D54z00008BEDfJCAX/set-actor-time-dilation-to-0-during-a-animation-notify-state-cancel-it?fromCase=1

Notify gathering functions (e.g. UAnimSequenceBase::GetAnimNotifiesFromDeltaPositions) early out if PreviousPosition == CurrentPosition. 

Perhaps we could have a branch that gathers notify states that overlap CurrentPosition?

1. Create a custom Anim Notify State that prints a text at NotifyBegin and a different one at NotifyEnd (see picture)
2. Add the Anim Notify State to an animation (as long as possible, but not cover until the end)
3. Add code to the character BP to set and reset custom dilation time using a button
4. Play the animation that has the notify state
5. Press the button to set CustomTimeDilation to 0 on the actor
6. The notify states will end without the fix (nothing will happen with the fix)
7. Set CustomTimeDilation to 1 on the actor
8. The notify states will start again without the fix (with the fix, the notify will end once it reaches the end position)