diff --git a/editor/inspector/editor_properties.cpp b/editor/inspector/editor_properties.cpp
index 643c31959fd..5e996cbea73 100644
--- a/editor/inspector/editor_properties.cpp
+++ b/editor/inspector/editor_properties.cpp
@@ -3577,6 +3577,8 @@ void EditorPropertyResource::update_property() {
 	}
 
 	resource_picker->set_edited_resource_no_check(res);
+	const Ref<Resource> &real_res = get_edited_property_value();
+	resource_picker->set_force_allow_unique(real_res.is_null() && res.is_valid());
 }
 
 void EditorPropertyResource::collapse_all_folding() {
diff --git a/editor/inspector/editor_resource_picker.cpp b/editor/inspector/editor_resource_picker.cpp
index ca1c2c188d2..70008f48c7c 100644
--- a/editor/inspector/editor_resource_picker.cpp
+++ b/editor/inspector/editor_resource_picker.cpp
@@ -1369,6 +1369,9 @@ void EditorResourcePicker::_duplicate_selected_resources() {
 }
 
 bool EditorResourcePicker::_is_uniqueness_enabled(bool p_check_recursive) {
+	if (force_allow_unique) {
+		return true;
+	}
 	Ref<Resource> parent_resource = _has_parent_resource();
 	EditorNode *en = EditorNode::get_singleton();
 	bool internal_to_scene = en->is_resource_internal_to_scene(edited_resource);
diff --git a/editor/inspector/editor_resource_picker.h b/editor/inspector/editor_resource_picker.h
index a9fa90ccd63..18b5a0d921f 100644
--- a/editor/inspector/editor_resource_picker.h
+++ b/editor/inspector/editor_resource_picker.h
@@ -49,6 +49,7 @@ class EditorResourcePicker : public HBoxContainer {
 
 	bool editable = true;
 	bool dropping = false;
+	bool force_allow_unique = false;
 
 	Vector<String> inheritors_array;
 	mutable HashSet<StringName> allowed_types_without_convert;
@@ -142,6 +143,7 @@ public:
 	void set_edited_resource(Ref<Resource> p_resource);
 	void set_edited_resource_no_check(Ref<Resource> p_resource);
 	Ref<Resource> get_edited_resource();
+	void set_force_allow_unique(bool p_force) { force_allow_unique = p_force; }
 
 	void set_toggle_mode(bool p_enable);
 	bool is_toggle_mode() const;