Classic 1.12 sends SMSG_AURA_UPDATE/SMSG_AURA_UPDATE_ALL, but ClassicPacketParsers
inherited TBC's override which returns false (TBC uses a different aura system
and doesn't send SMSG_AURA_UPDATE at all).
Classic aura format differs from WotLK in two key ways:
- DURATION flag bit is 0x10 in Vanilla, not 0x20 as in WotLK; reading with the
WotLK parser would incorrectly gate duration reads and misparse aura fields
- No caster GUID field in Classic; WotLK parser tries to read one (gated by 0x08)
which would consume spell ID or flag bytes from the next aura slot
With this override, player/target aura bars and buff tracking work correctly
on Classic 1.12 connections for the first time.
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