On December 21, the Oregon Secretary of State ruled that the Constitution Party is still ballot-qualified. The Secretary of State interprets the law to mean that the vote test does count when a candidate is the nominee of two parties. However, it only counts for the party of membership of that candidate. Here is the December 20 blog post about this issue, which explains this issue in greater detail.
The Secretary of State acknowledges that the law is not clear, and it appears that the Secretary of State is depending on legislative intent. The law permitting fusion was never intended to make it more difficult for a party to remain qualified.