GameplayAbilitiesSystem: GameplayCues OnRemoved never firing

This behaviour was introduced in the following changelists in 5.3: CLs 25371706 and 25407985

https://github.com/EpicGames/UnrealEngine/commit/6e985ceeb98bc0d166756ccd3e3c0b0350d02265
https://github.com/EpicGames/UnrealEngine/commit/05db462fcda7813beb51e2c565515eee095b044f

There is further information provided by the licensee in the UDN case.

Enable GameplayAbilities plugin within Project.
Create a test Actor and add a Gameplay Cue to this actor.
Remove this Gameplay Cue and add a breakpoint within GameplayCueNotify_Actor::HandleGameplayCue to step through until line 215.
Step through the logic and see that the function always returns on line 221.
The logic returns early and the case EGameplayCueEvent::Removed: logic is not executed.