influxdb: Selecting from sub query is returning unexpected data in specific cases

Bug report

System info: Influxdb 1.2, Max OS 10.12.2

Steps to reproduce:

1. Seed influx with data
2. Run select * from workflows group by work_id order by time desc limit 1. This is the sub query, which returns the correct data I want to filter on.
3. Then run the full query SELECT * FROM (select * from workflows group by work_id order by time desc limit 1 ) WHERE state = 'error'. This returns expected data.
4. Then run SELECT * FROM (select * from workflows group by work_id order by time desc limit 1 ) WHERE state = 'render'. This returns expected data.
5. Then run SELECT * FROM (select * from workflows group by work_id order by time desc limit 1 ) WHERE state = 'send' This returns unexpected data.

Expected behavior: I expect the sub query to only return the items that match the where clause, after the sub query sorts them and limits them to one.

Actual behavior: It returns data that should not be in the subquery.

Additional info: It seems like the sub query is not carrying over the correct data possibly.