Relative alerts not working

I have never been able to use relative alerts as they dont seem to work.

Here is how my builder looks https://imgur.com/a/jEoaPgL and as you can see there is a spike of way more than 200 and it didnt log it, maybe I am getting this wrong?

And here is the Tickscript generated

```
var db = 'telegraf'

var rp = 'autogen'

var measurement = 'game_stats'

var groupBy = []

var whereFilter = lambda: ("host" == 'public')

var period = 10s

var every = 30s

var name = 'Gems'

var idVar = name

var message = 'Gems;'

var idTag = 'alertID'

var levelTag = 'level'

var messageField = 'message'

var durationField = 'duration'

var outputDB = 'chronograf'

var outputRP = 'autogen'

var outputMeasurement = 'alerts'

var triggerType = 'relative'

var shift = 1m

0s

var crit = 200

var data = stream
|from()
.database(db)
.retentionPolicy(rp)
.measurement(measurement)
.groupBy(groupBy)
.where(whereFilter)
|window()
.period(period)
.every(every)
.align()
|max('total_gems')
.as('value')

var past = data
|shift(shift)

var current = data

var trigger = past
|join(current)
.as('past', 'current')
|eval(lambda: float("current.value" - "past.value"))
.keep()
.as('value')
|alert()
.crit(lambda: "value" > crit)
.message(message)
.id(idVar)
.idTag(idTag)
.levelTag(levelTag)
.messageField(messageField)
.durationField(durationField)
.stateChangesOnly()
.telegram()
.chatId('telegramChatID_here')
.parseMode('Markdown')

trigger
|eval(lambda: float("value"))
.as('value')
.keep()
|influxDBOut()
.create()
.database(outputDB)
.retentionPolicy(outputRP)
.measurement(outputMeasurement)
.tag('alertName', name)
.tag('triggerType', triggerType)

trigger
|httpOut('output')
```

Start with the generated TICKscript in the issue, especially the window, shift, join, and relative alert stages. Reproduce the reported spike and trace the past/current values through the comparison; done means a value exceeding 200 reliably produces the expected alert.

Written by the indexing model from the issue text.