Be more defensive when terminating watchers.
Be more defensive when terminating watchers.

Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor