Livesearch macro doesn't apply "Restrict to label(s)" after hitting enter for search

Issue Summary

Live search 

Steps to Reproduce

1. Create a search with the "Livesearch" macro on a page and put a keyword on the Restrict to label(s) filter.
2. Save the macro and publish the page.
3. Now search a keyword in macro and it will search pages based on label restrictions.
4. Hit Enter button and now search results will ignore/remove the "label" filter for search results.

Expected Results

Search results should be based on "Restrict to label(s)"

Actual Results

After hitting the Enter button, the search doesn't apply "Restrict to label(s)" for results.

Workaround

Do not hit the Enter button during the search and select the pages from search results.