[1.1beta12] alerts

[madm1ke]

I have such trigger:
Name: 117 : Rawstat insert checking
{131:mysql.stats[innodb.row.insert,10.0.0.117].avg(60)}=0

And such action:
Trigger description like "Rawstat insert checking"
Trigger value = "ON"

However, action sends me an email when last value of item == 0
For example:

Trigger-name: 117 : Rawstat insert checking
Trigger-key: mysql.stats[innodb.row.insert,10.0.0.117]
Trigger-value.last:0 rps
Trigger-value.prev:0 rps
Trigger-value.avg(60):148.48 rps
Trigger-value.avg(300):148.48 rps

I'm confused