.

go/zodb/internal/weak/weak.go

@@ -133,6 +133,8 @@ func (w *Ref) Get() (obj interface{}) {
 		//time.Sleep(10*time.Millisecond)
 		//runtime.GC()
 		//runtime.GC()
+		//
+		// see also: https://github.com/golang/go/issues/43615
 
 		// recreate interface{} from saved words.
 		// XXX do writes as pointers so that compiler emits write barriers to notify GC?