Closes #186. Went with a design where the zipped reducer finishes early if and only if every subreducer finishes early. This seems to work out for the common use cases, and I can't think of any use cases for finishing early when any subreducer finishes early.
Closes #186. Went with a design where the zipped reducer finishes early if and only if every subreducer finishes early. This seems to work out for the common use cases, and I can't think of any use cases for finishing early when any subreducer finishes early.