Hypothetically, it shouldn't be a problem. The way I read things, it says they will try to avoid the double-payment BETWEEN the Advance payment (now) and on the 2021 tax return (almost a year from now). It doesn't really address the double-Advance payment, so hypothetically that would fall under the no-repayment rule. But it is difficult to know how the IRS will interpret things and the guidance they will give.
From what I have heard, the IRS is giving out double-Advance payments so far. But it is difficult to know what the IRS will do in the future.
