Namespaces text field filter doesn't get cleared when 'clear all filters' is clicked

Steps to reproduce:

1- Go to Namespaces

2- Enter any text in the filter

3- Press the magnifier icon

4- Click 'Clear all filters'

Expected result:

The text is removed from the field. 'Filter by keywords' is displayed again in the filter input.

Actual result:

The string entered in step 2 stays in the text field.