This isn't still an issue. This bug was the reason so many raid bosses were poofing after death without giving any loot (since the pets would get the killshots after they counted as NPC's), so if you haven't heard a flood of petitions regarding that, then you can be sure that this bug was fixed awhile ago.
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Project 1999 (PvE):
Giegue Nessithurtsithurts, 60 Bard <Divinity>
Starman Deluxe, 24 Enchanter
Lardna Minch, 18 Warrior
Project 1999 (PvP):
[50 (sometimes 49) Bard] Wolfram Alpha (Half Elf) ZONE: oasis |