More results button appearing without reason

This problem is also happening on your website https://ajaxsearchpro.com too.

If I type in ‘Ford’ in the search bar, hit enter. There are two results.
Click on the X to delete the search. Then type ‘Ford again, hit enter. There are two results plus the ‘more results’ button that is not active because there are no more results.

The two searches are the same, yet the button shows up the second time.