[VSA] Unable to add new label filter after removing a label filter

Summary

1. If I add a label in the VSA search bar, then remove it, then try to add it again, I can't. If I refresh then I can add the label.
2. The search bar is slow to respond. The first time I typed the label name in the search bar there was a delay before anything displayed.

Steps to reproduce

1. In Google Chrome, add any label in the group-level search bar to filter the table
2. Click the x to remove the label
3. Try to add a new label
4. There is a spinner. The label doesn't get selected. There is no timeout error (although I didn't hang around long to see if it eventually times out)

Video - filter