it frequently happened to me upon crash/relog that i found myself in a "blue sky" state, meaning there is no scenery besides the sky and the avatar is in a falling animation. i guess the location of the avatar is slightly below the ground, like outside the world.
a command /stuck could move the avatar for like 10m in every 3 dimensions (preferrably "up" for the height).
otherwise a revive without death should be clone free. i am not going to pay for buggy avatar positioning - the mentioned solutions could reduce helpdesk spamming.
