IX-Async implementation of ForEachAsync possibly failing to dipose enumerator #183
Description
We got an EF Core 1.0.0 RC2 bug report at dotnet/efcore#5440 that could be explained by ForEachAsync() not timely calling Dispose() on the IAsyncEnumerator<T>.
We didn't get a full repro but the customers confirmed that the issue went away when we replaced IX-Async's implementation of ForEachAsync() with our own.
cc @anpete