Incorrect function parameters passed to signup_pay_adjust from signup_pay_do_paypal

I was noticing that signup_pay_adjust was not working properly to generate the Paypal link in signup_pay_do_paypal.

On line 869:
$amount = signup_pay_adjust($node, $user, $amount);

Neither $node nor $user have been set. Instead the function call should be using $signup_node and $signup_user, as vivified 9 lines above.

I replaced 869 with:
$amount = signup_pay_adjust($signup_node, $signup_user, $amount);

Has this issue already been discussed elsewhere? Should I finally get involved on the CVS side of things and commit this change?