### Steps to reproduce <!--- Provide a link to a live example or a clear set of steps to reproduce the issue--> 1. Start adding a new rule, but do not enter anything 2. Enter an invalid rule (for instance, too short: `a`) 3. Switch to another filter 4. Get back to the user filter ### Expected behavior You still can add new rules ### Actual behavior New empty line is gone, clicking "plus" icon does nothing.
Steps to reproduce
a)Expected behavior
You still can add new rules
Actual behavior
New empty line is gone, clicking "plus" icon does nothing.