Reduce forkExecution occurrences in the stack

[Dragovorn]

Right now it probably isn't an issue, but I can imagine on significantly larger scale projects it could become an issue.

[Dragovorn]

Will likely need to rewrite forkExecution to terminate when it's caught up with the original method, the executed list should be updated and not lead to any concurrent modification issues.

If that doesn't work, consider forking execution to a new thread & waiting for that one to finish. (this might honestly just be the optimal solution)

[Dragovorn]

Putting this into the 1.0.0 milestone but it might be tentative depending how difficult this shit might be.