The most important question was the treatment of the situation where not all of the parties to the prior treaty were parties to the latter treaty and where there were States that were parties to the latter but not to the prior treaty.
最重要的问题，是如何处理先订条约的缔约方并非都是后订条约的缔约方和有些国家是后订条约的缔约方却不是先订条约的缔约方的情况。