Steps to reproduce

Case 1:

1. Prepare 2 matomo suppliers
2. Add new widget with metric number type with 1 matomo supplier
3. See chart data display correctly
4. Switch to another matomo supplier
5. See no thing 
6. Still can add chart to dashboard

Case 2:

1. Select Matomo data supplier

2. Select "metric number" chart type, fill in dimension/metric

3. Switch to another matomo data supplier, fill in dimension/metric

4. Change chart type to "timeline"

5. Switch to another matomo data supplier

Expected results

Clear metrics/dimension when switching suppliers

Actual results

metrics/dimension are not clear

Workaround

Development notes