alert rule is always set stateChangesOnly

hi， I configure the alert rule on alert-rule-builder of kapacitor which docker container is kapacitor:1.5.0-alpine.
The email configuration in kapacitor.conf is as follows:
[smtp]
enabled = false
host = "localhost"
port = 25
username = ""
password = ""
no-verify = false
global = false
state-changes-only = false
from = ""
idle-timeout = "30s"

The alertnode of tickscript is always as follows:
var trigger = data
|alert()
.crit(lambda: "value" > crit)
**.stateChangesOnly()**
.message(message)
.id(idVar)
.idTag(idTag)
.levelTag(levelTag)
.messageField(messageField)
.durationField(durationField)
.email()
.to('smith@qq.com')

I have set " state-changes-only = false". Why does the alertnode have "stateChangesOnly()"?

Start by tracing how the alert-rule-builder reads kapacitor.conf, especially the smtp state-changes-only setting, and how it generates the alertnode in the tickscript. Compare the generated .stateChangesOnly() call with the configured false value; done means the behavior is explained or corrected and covered by a regression test.

Written by the indexing model from the issue text.