Hi Anadin,
So it sounds like problem is with how Mac security interacts with our version of SVN that we ship with Mac editor. We’ve made some internal changes to allow us to use built-in SVN binaries instead of ones we ship, and that should be out with a future version of engine. We believe this made it into 4.9, but I’m still confirming that. If I discover it won’t be included in 4.9, it should be in 4.10, and I’ll post here to let you know. Thanks for report!