Filtering log search issues

[vozersky]

1.

Steps to reproduce

1. Search for any word which should show up when visiting a site.
2. Now open the site and check filtering log again.
3. Now remove the search request and search for the same word again and it

Actual behavior

Search result is only shown when you re-type the request

2

Actual behavior

you can't clean the log when the search request is in the search field
(you actually can, but you will not see the result until you go back\delete the request)

[nkartyshov]

fixed