Interrupted countdown emits wrong remaining count

[Graefer]

The 2nd output should emit the remaining counter. If the countdown is interrupted, the 2nd output emits 0 which is wrong. This is sad, as it is hard to differentiate, if the countdown has finished or was interrupted.
This is probably not a bug. But the ability to see, if the countdown has properly finished is may be a missing feature which could easily included.