A precautionary judgment (decision or ruling) is a judgment based on the "Precautionary Principle," which requires the taking of action to prevent possible great harm, even though we do not have ironclad certainty of all available information. It is also called "preventive decision," especially outside court proceedings.

In ethics and moral theology, such a decision is usually called "prudential," i.e., based on the requirements of prudence (one of the four cardinal virtues).

In the text you have, it appears that a prior decision is being contested, and that one of the parties to the case is asking the court to vacate that contested decision based on the principle of precaution, i.e., to prevent possible great harm. We (the answerers) do not have the full text, but you do, so I would check to see if this is indeed what is happening. If so, then this would be the right translation.