PaperDollStatTooltip upper-cases UnitClass(unit)'s token, and a unit whose
class byte has no ChrClasses row answers two nils (UnitClass, 0x518350):
the server's demons do, so hovering the pet page's stats raised "bad
argument #1 to strupper". Such a unit now gets the stock default line, in
both styles.
LEARNED_SPELL_IN_TAB's glow flashed where 1.12's hidden skill line tabs
stood: it now sits on the book's own tabs, and choosing a tab stops it, as
SpellBookSkillLineTab_OnClick does.
Verified: harness probe (the pet tooltip shows the default strength line,
no error; the tab 2 glow's center matches our tab 2's; choosing tab 2
hides it).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sindoring
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