Clear search filter in labels dropdown after someone hits enter key
Description
When I want to add multiple labels, I often start typing the label name, and when label appears in dropdown I hit enter to choose it.
When I want to find and add next label, I need to remove all previously typed characters and start the search again.
Proposal
If we could make Enter key to clear label name filter field in the dropdown, it would save few miliseconds each time someone wants to add multiple labels using enter key to select the label.