ABTest regression it does not reset back to first argument when stopping

[anonymous-edc (Anonymous User)]

Hey Julian, Thanks for getting back to me.

https://github.com/EpicGames/UnrealEngine/commit/2547171a65ba9b50a9d8d2cf294d4f18e9b6badb

I made the pull request on github if that works for you. Thanks for taking a look.