support managed reference property type in "IsTypeExpandable"

Chris Foulston · Chris Foulston · commit 2c3cc7d263dd · 2020-04-23T13:43:48.000-07:00
diff --git a/Editor/ReorderableList.cs b/Editor/ReorderableList.cs
@@ -1809,7 +1809,9 @@ private bool IsTypeExpandable(SerializedPropertyType type) {
 				case SerializedPropertyType.Vector4:
 				case SerializedPropertyType.Quaternion:
 				case SerializedPropertyType.ArraySize:
-
+#if UNITY_2019_3_OR_NEWER
+				case SerializedPropertyType.ManagedReference:
+#endif
 					return true;
 
 				default:
