[blml] if or while ?

[Alain Gottcheiner]

Dear blmlists,

While rereading TFLB for a response to Herman's last question, I came 
across L50B2b (if there is a PC, and partner comes in hand, declarer may 
let the PC stand).

There seems to be one open question : if the partner of the penalized 
player comes to hand once again, does declarer have the choice, as 
expressed by L50B2 (a and b), once again ? Or is his choice of letting the 
PC stand binding ?

Thank you for the advice

   Alain