WatchJS does multiple callbacks when we push an element on a watched Array

[Matthew Ritzman]

If you have multiple watchers for an array and push an element, WatchJS calls EACH watcher as many as the number of total watchers on the array. For example, if you have an array with two watchers, EACH watcher is called two times when an element is pushed onto the array. If you have an array with three watchers, each watcher is called three times when an element is added...

This is problem is reproduced with here: http://jsfiddle.net/66zzW/

Here is a screenshot showing the problem:

[Michiel Helvensteijn]

This seems to be the case for any change:

http://jsfiddle.net/mhelvens/7q9rrLya/1/

That's pretty important.