Cancelling task does not update group's isRunning property

[GendelfLugansk]

Version: 0.8.7 Ember version: 1.13.11 Steps to reproduce:

• Create a long-running task and assign it to group
• Perform task
• Cancel task using task's cancelAll method or cancel-all helper

Expected result: Group's isRunning property is false after cancellation Actual result: Group's isRunning property is true

[GendelfLugansk]

I tried to debug a little and found out that if I replace line 30 of -scheduler.js with Ember.run.next(null, flushTaskCounts, seen);, cancellation works as intended. However, I'm not sure if this fix is correct and wouldn't break something else.