PPL Inconsistency: Storing Functions to Function Variables

[gehakte_bits]

All quoting ways appear to work, even when not in a native app for the variable (F1). Do you have an example?

Code:


//ppl version 14596

// 2023.0218 pretty-prime v0.3b
#pragma mode(separator(.,;) integer(h32))
EXPORT a_b() 
BEGIN 
LOCAL x,y,z ;
  STARTAPP("Triangle_Solver");

  F1:="X^2-4";
  x:=ROOT(F1,X);

  F1:='X^2-4';
  y:=ROOT(F1,X);

  F1:=QUOTE(X^2-4);
  z:=ROOT(F1,X);

  RETURN ({x,y,z});
END;