CancelConditon on Schedule seems to be ignored

**Describe the bug**
When I add a cancel condition to a Schedule, when the cancelation condition is true it still seems to run the schedule.

**To Reproduce**

I have modified WorkflowCore.Sample16 to make sure I had a clean example.
`
builder
.StartWith(context => Console.WriteLine("Hello"))
.Schedule(data => TimeSpan.FromSeconds(5)).Do(schedule => schedule
.StartWith(context => Console.WriteLine("Doing scheduled tasks"))
)
.CancelCondition(s => true, true)
.Then(context => Console.WriteLine("Doing normal tasks"));

`
Basically I have added the `.CancelCondition(s => true, true)` to the Schedule to force it to always be cancelled but the output is still showing "Doing scheduled tasks" after 5 seconds has passed.

**Expected behavior**
I would expect the schedule to cancel and not write "Doing scheduled tasks" to the console.

**Additional context**
Add any other context about the problem here.

Start with the modified WorkflowCore.Sample16 reproduction shown in the issue and run it to confirm that a Schedule with an always-true CancelCondition still executes. Trace the Schedule cancellation path; done means the scheduled task is not run when the condition is true, while the normal continuation behaves as expected.

Written by the indexing model from the issue text.