app/views/madmin/fields/belongs_to/_form.html.erb in madmin-0.1.1 vs app/views/madmin/fields/belongs_to/_form.html.erb in madmin-1.0.0.beta1

@@ -1,2 +1,2 @@
 <%= form.label field.attribute_name, class: "inline-block w-32 flex-shrink-0" %>
-<%= form.select field.to_param, field.options_for_select(record), { prompt: true }, { class: "form-select" } %>
+<%= form.select field.to_param, field.options_for_select(record), { prompt: true }, { class: "form-select", data: { controller: "slimselect", data: { controller: "slimselect" } } } %>