Site Admin --> Categorization --> tags
Add a tag, eg tag1
Go to DM, add more than 20 entries(say 23 entries) with the tag, tag1
Search tag1 in DM search bar
Expected: return 23 entries. At bottom you should see "Showing 1 to 20 of 23 entries." and you should be able to turn to next page.
Real: return 20 entries. At bottom you would see "Showing 1 to 20 of 20 entries." and you would not be able to turn to next page.