Steps to reproduce:

1. Create 2 hosts (for example, "host a" and "host b")
2. To each host add Zabbix trapper item with the same key (for example, "test")
3. Send values to this item:
   1. host a - 1, 100
   2. host b - 10, 20
4. Navigate to dashboards and add top hosts widget
5. Add column: type Item value, add test item, aggregation - min
6. In top hosts configuration do not change anything else (leave order - Top N)
7. Create widget and observe: values are added in descending order (as expected)
8. Edit the widget and add aggregation function "max", update the new settings
9. Observe: values are added in descending order (as expected)
10. Edit the settings again and change aggregation function to "none"

Result: Values are in ascending order, although the order is set to descending order.

Expected: Values are in ascending or descending order even if no aggregation function is used.