If you add an entry to books like:
MeleeSkillLearn, Turn this tome into your guild master to learn this ability, 0
This error will go away.
I have added a new rule locally (will make into a PR shortly) that if used will disable auto-learn via click of disciplines and force GM turn in. With that in place, the text now shows up when you preview the item right right click hold:
PR will be in shortly.