Solve retain cycle

[kevinrenskers]

See https://stackoverflow.com/questions/57112264/weird-retain-cycle-when-using-the-coordinator-pattern for a description of the problem that causes the retain cycle.

[kevinrenskers]

Maybe it would be better to use the runCompletion(for controller: UIViewController) method since that's already taking care of cleaning up the completions dictionary, but this was the simplest one-line solution to my problem :)

[daveneff]

Good catch! I agree, I think trying to use runCompletion(for controller: UIViewController) makes less sense given that this completely resets the root and we'd have to manually capture the existing view controller hierarchy and run that function on each view controller. I like your simple solution :)

Thanks so much for the contribution!