Trailing value in auditTime

[ivan7237d]

RxJS version:
6.0.0-alpha.3 (but would also work with previous versions)

Code to reproduce:

Rx.Observable.of(1)
  .concat(Rx.Observable.never())
  .auditTime(1000)
  .subscribe(console.log);

Expected behavior:
The same values should be emitted whether the second line .concat(Rx.Observable.never()) is present or not.

Actual behavior:
A value is emitted only when that line is present.

Additional information:
A completion of the source observable (of(1) or of(1).concat(Rx.Observable.never())) should not have any meaning beyond indicating that no more values will be emitted, so it shouldn't cause auditTime to drop the value.

[dengwanc]

dose throttleTime have the same actual meaning with auditTime ? @benlesh

[deadbeef84]

We just ran into this issue. The behavior doesn't seem to be defined by the auditTime-spec either. We recently had a similar issue with throttleTime #3351.

[benlesh]

Seems like a duplicate of #3430 and probably similar to #2859