I was wondering about the definition of "quality" in canon 1098 of the Catholic Church's 1983 Code of Canon Law:
Can. 1098 A person contracts invalidly who enters into a marriage deceived by malice, perpetrated to obtain consent, concerning some quality (qualitatem) of the other partner which by its very nature can gravely disturb the partnership of conjugal life.
Would it be fair to say that a "quality" in the sense intended by this canon must be a stable characteristic present at the time of consent? This would mean that something that may have been defined as a quality at some point before marriage - tendency towards drug use, for instance - which later disappears from the person and is absent at the time of consent, is not a "quality" in the sense intended by this canon. Do I have that right?