Ix: Do not dispose the enumerator while enumerating in the ToObservable operator.

[quinmars]

As pointed out by @danielcweber the current implementation of ToObservable may violate the contract of IAsyncEnumerator, because it is possible to call DisposeAsync during an on going MoveNextAsync call.

#423 (comment)

[quinmars]

I'm using now the original logic without catching Rx pipeline exceptions. There are two places, however, where the enumerator could throw without being catched atm.

[danielcweber]

Review by @bartdesmet still needed? His earlier review has been adressed by @quinmars if I see this correctly.

[quinmars]

Somehow, github could not link the commit to @bartholinie. Does any one know how to make that work?

[danielcweber]

"Jens Chr authored and quinmars committed 12 hours ago". Commit info is preserved, isn't it?

[danielcweber]

The requested change was about the recursion and has been adressed, right? Would merge after checks pass.

[quinmars]

Right the commit info is preserve, but @bartholinie is not listed in the contributors list.

[danielcweber]

@onovotny @bartdesmet Can we have a Linq.Async / Ix.Async preview that would contain this fix? Thanks a lot.