Minor Description
When list variables are declared with a list containing variables as initial value, the managing VariableListExpression seems to save the variable expression given with that argument list instead of the represented values. E.g.
INTLIST somelist = {var};
for a variable
INT var = 1;
stores the expression behind var instead of the value 1. So changing the value of var after the declaration of somelist still effects the value of somelist[0]. That's not the case if ADD was used instead.
Consider this example:
DECLARE testType (StringArray arr); STRING s = "a"; STRINGLIST sl = {s}; Document{ -> ADD(sl, s), s = "b", CREATE(testType, "arr" = sl)};