Hopping Window return empty list

[jefferyng33106]

Checklist

• [x] I have included information about relevant versions
• [x] I have verified that the issue persists when using the master branch of Faust.

Steps to reproduce

Hello, I am trying to understand how the table + windowing works

The issue is when I use:

1. multiple partition + no matter it's store://rocksdb or memory
2. or in local mode with only 1 partition + rocksdb

Also I've checked:

• https://github.com/robinhood/faust/issues/510
• https://github.com/robinhood/faust/issues/705
• https://github.com/robinhood/faust/issues/674
• https://github.com/robinhood/faust/pull/675

But using export NO_CYTHON=True is not working

what I expect:

["dummy message 1", "dummy message 2"]

But what I get:

[]  # -> always empty list

Versions

• Python version 3.7.0
• Faust version 1.10.4
• Operating system MacOS 10.15.7
• Kafka version
• RocksDB version (if applicable)