When it first came out I think I tried it. Going from memory (forgive me if I'm wrong) I think it keeps pressing that button. Thus, putting the lever to "flaps down" continues to try lowering flaps. Putting it to "flaps up" continues to try raising them. Naturally if they're all up or all down you will stop seeing a result.
Not too far off from some planes in WW2, where you had to return the hydraulic pump to neutral after you were done raising/lowering the flaps.