I have a report that when you click a tag in the tag cloud and then change the sort option on the top right it shows no results found in koha 3.10.10 when I test this in master I get results, but too many - I get results for a keyword search instead of the tag search. Either way there is a problem with being able to change the sort on a tag search results page.
Verified in 3.12. When changing the sort option, I also get results for a keyword search for the tag instead of a reordering of the tagged records..
*** This bug has been marked as a duplicate of bug 6950 ***