Steps to reproduce:

1. Go to "Monitoring > Latest data".
2. Set filter via host group (eg. Network devices) and item name.
3. Go to "Monitoring > Hosts".
4. Click "Latest data" on any host which is not in host group from step 2 (eg. in Linux servers).

Result:
Latest data filter contains:

Host group: host group from step 2 (eg. Network devices) 
Host: selected host
Name: item name from step 2.

Expected:
1. Auto-reset old filter.
2. Add filter via selected host.