Steps to reproduce:

1. Set template for a host, and add value 0.15 for the trigger
2. The server reponse 0.1 value
3. Change the value of trigger at host (not template) to 0.08
4. The alert on Dashboard will not disappear.

Result:
See screenshot...

Expected:
The alert should be disappear after chnage the value of trigger under the critical value.