Query Analytics are not reloading

User impact:

The dashboard will not reload

Steps to reproduce:

• open pmm
• open query analytics
• set dashboard refresh to every 5s (wait 5 sec)
• click on refresh icon

Actual result:

The dashboard will not reload. Even if I change filters, sorting,... 

Expected result:

The dashboard will show spinner, the dashboard will reload after both 5s refresh and manual click refresh

Workaround:

Refresh the whole URL to get the newest data.

Details: