Disparity between trigger formula and item values in mail

Quack,

I've got a trigger whose formula is:

{Elwing:sensor[coretemp-isa-0000,temp2].last()}

>50 or

{Elwing:sensor[coretemp-isa-0000,temp3].last()}

>50

I recently received a mail with the following alert:
================================================
Trigger: Temperature of CPU is too high on Elwing
Trigger status: OK
Trigger severity: Disaster
Trigger URL:

Item values:

1. Temperature of CPU 0 / Core 0 (Elwing:sensor[coretemp-isa-0000,temp2]): 37 °C
2. Temperature of CPU 0 / Core 1 (Elwing:sensor[coretemp-isa-0000,temp3]): 42 °C
3. UNKNOWN (UNKNOWN:UNKNOWN): UNKNOWN

Original event ID: 5095462
================================================

As you can see the item value do not match the criteria.

Maybe there is a race condition between the alert condition and the time the mail is sent, but the mesage should contain the values causing the problem or it is useless.

Regards.
_o<