Clearing a search leads to a no result error
Using gnome-characters 3.32.1 on the current Ubuntu version
start gnome-characters, select the smiley category
type some text to filter fonts, e.g 'thumb' -> the view is filtered as expected
hit 'esc' -> the text entry is closed, the right pane displays 'search foud no result, try a different search'
The search has been cleared, shouldn't it list the category content?