Quote Originally Posted by econ21
When such a contradiction occurred earlier, it was decided that unless later motions explicitly stated "This motion invalidates motion X", then an earlier motion X took precedence. And it will be recalled that later and earlier could simply refer to the order in which they were tabled.
I do not recall this. Could you verify this by looking into the senate records ? Otherwise I am inclined to say that as both motions invalidate each other, they cancel each other out and the consuls are free to make up their own minds.