Trial of Chaos room completion script bricked

bug report id 4,028,058,020

In the final room of trial of chaos, against the chimera boss, I decided to try approaching it from below by blinking into the arena.

I managed to enter the arena without spawning trialmaster to say hello. Chimera is dead now, got his loot...but the room's completion script is stuck at "enter the trial arena" even after backtracking to spawn trialmaster, and the end door does not open.

Edit: also, I am not able to leave without logging out. Character might be stuck.