Only related objects to the last selected object of the dependent are loaded #52
Description
Describe the bug
Okay, lets say I have a first multiple select widget called: base_select and a second multiple select widget dependent_select. The dependent_select widget should display it's content based on the selection of the base_select widget.
Now when I have selected two items of the base_select only the related objects of one of these items are displayed in the dependent_select.
Expected behavior
The dependent_select should show all related items of all the selected items of the base_select