Preference numSearchRSSResults is supposed to limit the number of results in the RSS feed, but it doesn't. The RSS feed shows the number of results that is specified in OPACnumSearchResults instead. Test : 1. Fill numSearchRSSResults with a number, let's say 20. 2. Fill OPACnumSearchResults with a number, let's say 50. 3. Go to your OPAC and search for something with more than 50 results. 4. Click on the RSS feed button. The RSS feed will show 50 results instead of 20.
I can't reproduce this issue. Both OPACnumSearchResults and numSearchRSSResults seem to be working as they should.