id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 27487 ModelAdmin.formfield_overrides on ManyToManyField isn't compatible with CheckboxSelectMultiple nrogers64 "The following `ModelAdmin` code updates the widget, as expected: {{{ formfield_overrides = { ManyToManyField: {'widget': CheckboxSelectMultiple}, } }}} However, it has two problems: The first problem is that it provides the little green plus sign to add another object on the fly, but that functionality doesn't actually work properly with the `CheckboxSelectMultiple` widget (after adding another object, you have to refresh the page in order to see it). So I would think that this widget shouldn't provide the little green plus sign. The second problem might not be valid because of what I'm doing in my project. Currently, the `