Search Using Favourite Spaces Filter Not Working

Steps to reproduce:

1. Create a space
2. Favourited it
3. You can see that in the dashboard the space is listed under Favourite Spaces section
4. The space is also listed under Space Directory > Favourite Spaces
5. Search for the created space for example: test from the search field
6. You can see the list of results and test space is listed (by default the filter is set to 'All Spaces'
7. Change the filter to 'Favourite Spaces' and you'll get this instead:

   No results found for test. Please try one of the following suggestions:
   Use more general search terms or consult the online documentation for tips.
   If you are filtering by space, content, last modification date or contributor, try removing or adjusting the filter
   

The filter 'Favourite Spaces' is not working. Rebuilding the index did not make any difference.