# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2019-06-25 14:48:33 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1143531429361606656) In reply to: [@MrMcSwiftface](http://twitter.com/MrMcSwiftface/status/1143528303682342913) @MrMcSwiftface The suggestion here was that it's some weird class cluster thing. But I don't even know how that wouldn't still cause the retain, but that I don't really know much about class clusters.