Rethrow downstream exception during "onCompletion" emissions #1658
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* We cannot allow emitting elements when downstream exception occurred, otherwise it may lead to a weird side-effects when "collect" block (or any other terminal operator) has thrown an exception, but keeps receiving new values
* Another solution may be to silently ignore emitted values, but it may lead to a postponed cancellation and surprising behaviour for users
Fixes #1654
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I expect to address this issue even more during fix for #1657 |
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Fixes #1654