Example: angels in another world; such a conditional is neither true nor false, and omniscience loses nothing
Suppose someone says that if God created another world and placed certain angels in it in these or those circumstances, those angels would persevere in their duty and in the love of God. On their view, what that conditional proposition asserts is neither true nor false, and so God cannot know it as true or false.
The matter is of itself merely possible and open to being so or not being so, and God knows that this is how it stands. So if it is said that the proposition contains no truth God can know, God's omniscience loses nothing.
Latin
XXXVII. Exempli causa, affirmat aliquis, quod si Deus mundum alium crearet, & certos Angelos in eo conderet, in his, aut illis circumstantiis, Angeli isti essent in officio suo & amore Dei perseveraturi. Ex eorum mente, id quod affirmatur in conditionali ista propositione neque verum, neque falsum est, ac proinde ut tale a Deo cognosci non potest; sed res est ex se mere possibilis, & quae indifferens est, ut ita sit, vel non sit; Eamque ita se habere novit Deus; ac proinde, si dicatur ista propositione nullam veritatem Deo scibilem contineri, omniscientiae divinae nihil propterea detrahitur.