[Mod] Sitting NPC mods collision issue

This issue easy to reproduce with Animated Morrowind 1.0 (http://mw.modhistory.com/download-55-6351). Just type in console:

@coc "Balmora, Council Club" AM_Eater01->enable@

Result: NPC (Ular gro-Bashag) spawned at correct position, but game immediately "pushed" the NPC on top of a table (see screenshots). "The regulars - Sitting NPC" plugin is also affected.

This effect based on bounding box instead of mesh dimensions, right?

(RM-3803 from redmine: created on 2017-03-24 by Andrei Kortunov, , closed on 2018-05-23 by Andrei Kortunov)

Attachments: sitting.patch