* FIxed exception when keys are registered or unregistered while checking in update.
* FIxed exception when keys are registered or unregistered while checking in update.

kimberlysiva/unity-sdk,watson-developer-cloud/unity-sdk,watson-developer-cloud/unity-sdk,scottdangelo/unity-sdk,watson-developer-cloud/unity-sdk,kimberlysiva/unity-sdk,scottdangelo/unity-sdk