Redirect when only select one taxonomy

Hi,

We created 2 taxonomies with your plugin:
1) szerzok
2) lapszam

We found a problem where if we only want to see all the results of “szerzok” or “lapszam”, and not select any other searching options, the plugin redirects to a random post, or to a 404 page.

This will redirect to one of the author’s (szerzo) post instead of see all of it’s content: https://zm.sclmedia.hu/szerzok/afra-janos/
This will redirect to page 404: https://zm.sclmedia.hu/szerzok/egyeb/
(egyeb means other, so we posted there the posts which have no known author (szerzo))

We tested in a new WP installation too, but the problem is there too.

Thank you very much for your help!

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