Using findColumn results in contains - only matches last value

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__Steps to reproduce:__

In a bucket with 2 series, I want to get a list of tag values from 1 series and based on that get metrics in another series:
```
// this returns 12 entries
myList = from(bucket: "myBucket")
|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "mySeries1")
|> group(columns: ["id"])
|> last()
|> group(columns: ["_measurement"])
|> findColumn(fn: (key) => true, column: "id")

// here I only get rows with the last id in the list above
from(bucket: "myBucket")
|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "mySeries2")
|> filter(fn: (r) => contains(value: r.id, set: myList ))
```
__Expected behavior:__

Get all data points for metric mySeries2 which have a tag value in the list returned by the first query

__Actual behavior:__

I only get mySeries2 data points for what seems the last value in the returned list

__Environment info:__

* System info: Linux 3.10.0-1160.53.1.el7.x86_64 x86_64
* InfluxDB version: InfluxDB 2.1.1 (git: 657e1839de) build_date: 2021-11-09T03:03:48Z
* Other relevant environment details:

__Config:__

http-bind-address: 127.0.0.1:8086
bolt-path: /prod/influxdb/data/influxd.bolt
engine-path: /prod/influxdb/data/engine
tls-cert: /prod/certs/myhost.example.com.cert.pem
tls-key: /prod/certs/myhost.example.com.key.pem

Reproduce the two queries shown against InfluxDB 2.1.1, using the sample bucket, series, and tag values described in the report. Trace how the list returned by findColumn is consumed by contains; done means the second query returns every data point whose id appears in the list, not only those matching the last value.

Written by the indexing model from the issue text.