ntdll: Handle NtSetContextThread on the client side (as far as
possible) when setting the context of the current thread.
diff --git a/server/thread.c b/server/thread.c
index 507eed5..3ffbf85 100644
--- a/server/thread.c
+++ b/server/thread.c
@@ -1132,6 +1132,7 @@
     {
         set_thread_context( thread, get_req_data(), req->flags );
     }
+    reply->self = (thread == current);
     release_object( thread );
 }