Memory leak when the same never-resolved Promise is used with thousands of calls to Promise.race()

[dko-slapdash]

combine-async-iterators/index.js

Line 26 in f47bea2

asyncIteratorsValues[index] = promiseThatNeverResolve;

Details, why:
nodejs/node#17469

Alternative approach:
https://github.com/reconbot/streaming-iterables/blob/master/lib/parallel-merge.ts
(but for now streaming-iterables doesn't run .return() and your library does, which is a big advantage of your library).

[fraxken]

fixed with v2.0.0.