Description of problem:
When you remove conditions from an alert that has notifications fired, the conditions for the previously fired notifications are cleared showing "No Conditions" in history and "No items to show." under the notification detail's Conditions tab.

Version-Release number of selected component (if applicable):
3.0

How reproducible:
Always.

Steps to Reproduce:
1. Create an alert.
2. Wait for alert to fire notification.
3. Verify notification has condition text set in history tab.
4. Edit alert, removing conditions.
5. Check condition text is empty in history tab.
  
Actual results:
Conditions are cleared.

Expected results:
Conditions remain the values of the condition when the notification fired.