Incorrect World context during ForcePinActivation

[CyaDaPaKnat]

I managed to reproduce the issue on the FlowGame demo project.

In the editor, the steps to reproduce are :

1. Start PIE
2. Open the q01_FirstActions asset
3. Force the activation of the Spawn pin on the Spawn by Actor Reference node
4. Notice how no cube was spawned in the PIE level
5. Exit PIE
6. Notice how the cube was actually spawned in the editor level