Bug upon player death (old? new?)

[Eternium]

I was running around the WSK3 in hell, trying to find the stairs with my zealer, when I die very suddenly to a group of Oblivion Knights who IMed me mid-zeal. I hit escape to go back to town, then the weirdness starts.
Rather than go to town, my character is standing on his corpse, and he is naked. I can't interact with anything at all, enemies ignore me, all the usual things that happen during lag. So I type, "Wow, this is some weird lag" expecting to see the message in a couple seconds when everything is normal.
To my surprise it shows up, and some guy replies immediately, "What lag?"

Then I see my party come down the WSK2-3 stairs, and fight the guys on my corpse. I decided to be helpful and use my invulenrability to find the stairs (I could still use Vigor), and I could explore the whole level. Eventually I had to rejoin, and then all was normal, but it was a very strange couple minutes.

Anyone know anything about this problem? Has it happened to others?

[Evrae Altana]

This happens when you leech back some life (from Life Tap for example) at the exact moment of death, so it's like you're dead, but kind of alive, but not really because you're dead. Rejoining is the only way out.

[Eternium]

That makes perfect sense - the zealot is a fully geared (dracs) uber-killer in training.

[A C E]

That has happened to me before, I had life tap on a monster and an OK cast iron madien on me mid zeal and I ended up as the living dead.