Erase check when forgetting object.

fuse/handle.go

@@ -162,6 +162,7 @@ func (me *int64HandleMap) Forget(handle uint64) (val *Handled) {
 	me.mutex.Lock()
 	defer me.mutex.Unlock()
 	me.handles[handle] = nil, false
+	val.check = 0
 	return val
 }
 

fuse/handle_test.go

@@ -89,6 +89,10 @@ func TestHandleMapBasic(t *testing.T) {
 	if hm.Has(h) {
 		t.Fatal("Still has handle")
 	}
+	if v.check != 0 {
+		t.Errorf("forgotten object still has a check.")  
+	}
+	
 }
 
 func TestHandleMapMultiple(t *testing.T) {