Problem:

When removing all tenants from a heatmap report, the loading indicator for the report visualization does not disappear

Steps to reproduce:

• create a heatmap report (e.g. Flownode Count, grouped by Flownode, visualized as Heatmap) for a definition that needs to have a tenant (in the demo dataset it could be the "Hiring Demo 5 Tenants" Definition)
• open the Datasource popover
• open the Tenant Popover
• Click the "Disable All" button

Actual result :

• The Report displays a loading indicator that does not disappear

Expected result:

• The Report displays a message like "Select a Process Definition", similar to what happens when you remove all versions from the report