Search in "Alerts & Events" behaves differently than in other tabs

In "Alerts & Events" tab, when I type part of the name in the search bar, I get no results:

I have to type complete word, then the results start to appear:

In other tabs, like "Event Definitions", search bar accepts incomplete words and works fine:

## Expected Behavior
In "Alerts & Events" tab I can type incomplete names or words, and search still works, like in "Event Definitions" tab.

## Your Environment
[Test Day env.](https://test-dev.graylog.cloud/)

Graylog Version: 5.1.0