Right-Clicking String Input Pins containing NIL

If I have a disconnected string input pin containing NIL and try to change the value by right-clicking the pin it doesn’t work:

Beta26: Access violation error message
Beta27: No error message but when right-clicking there’s a dark grey box instead of Input box.

To reproduce:

Connect NIL (String) to a String Input. Disconnect link and then right-click the input.

Maybe not something you do everyday but perhaps pointing at a bug to kill.

finally fixed in latest alpha.
now nothing happens when clicking a nil-string-pin. but you can reset it via alt+rightclick.