Updating a widget should remove the collaboration of the former one

[QuCMGisaia]

In the analytics tab of the builder, we can trigger filters by using the widgets of the preview. However, if we trigger a filter and then update the contributor significantly, the filter stays and there is no way to remove the filter as the previous widget does not exist anymore. It causes weird situations where for example a powerbar does not seem to return enough elements based on the data and the configuration.