Possibly/probably related to bug 828, when two new recruits studied magic under the watchful eye of my more advanced mage, they gained T1. One spell from T1 in the magic school was reported in the .nr as being a "New spell", but of course the more advanced mage was already familiar with it. The other two spells at T1 in the magic school were not mentioned.
Yes, this is a known issue. The spell changed its internal name (in the code), which has no effect for the players, but the code figures you didn' know that spell and tells you about it again. Next time I rename a spell, I'll try to somehow trick that system.
